It's about five-and-a-half times the number of Keys on a Piano.
In other words, the count of Keys on a Piano is 0.18 times 490.(Moden layout; A0 to C7)
It's about seven times the number of Submarines in the US Navy.
In other words, 490 is 6.8 times the count of Submarines in the US Navy, and the count of Submarines in the US Navy is 0.15 times that amount.(a.k.a. Subs) (includes all types, all classes) (2015 figures)
The United States Navy maintains a fleet of 72 active submarines. A typical submarine goes to sea with a crew of about 140.
It's about nine times the number of Countries in Africa.
In other words, 490 is 9.1 times the count of Countries in Africa, and the count of Countries in Africa is 0.11 times that amount.(2016 figures) (sovereign states recognized by the UN only)
The continent of Africa includes 54 sovereign countries recognized by the United Nations as of 2016. It is the second-most populous continent in the world, with 1.1 billion inhabitants.
It's about ten times the number of Teeth in a Great White Shark's Mouth.
In other words, the count of Teeth in a Great White Shark's Mouth is 0.1 times 490.(Carcharodon carcharias) (average; including developing rows)
A Great White Shark has 48 exposed teeth on their upper and lower jaws. Behind these exposed teeth are developing teeth — up to 300 in about 5 rows. The sharks will continuously lose and replace the exposed teeth throughout their lives.
It's about one-tenth the number of Bishops in the Catholic Church.
In other words, 490 is 0.09155 times the count of Bishops in the Catholic Church, and the count of Bishops in the Catholic Church is 10.92 times that amount.(2015 figures; total Latin and Eastern Church figures; including Pope)
It's about one-fifteenth the number of Blue Whales in the World.
In other words, the count of Blue Whales in the World is 17 times 490.(Balaenoptera musculus) (2002 estimates)
It's about eighteen times the number of Countries in the European Union.
In other words, the count of Countries in the European Union is 0.056 times 490.(a.k.a. EU) (2016 figures)