It's about 80 times the number of Living U.S. Presidents.
In other words, the count of Living U.S. Presidents is 0.01 times 390.(a.k.a. Presidents of the United States; a.k.a. Presidents of the United States of America; a.k.a. POTUS), (2016 figures) (including current)
It's about 200 times the number of Escalators in the State of Wyoming.
In other words, the count of Escalators in the State of Wyoming is 0.005 times 390.(2013 figures)
There are only two escalators in the State of Wyoming (although there are apparently plenty of elevators). It is speculated that the lack of escalators is due to the older age of the buildings and the abundance of cheap land resulting in single-story structures. At the time the last count of escalators was made, the state had a population of just 576,000 people.