Fatto generale: 2492 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2492 is the larger number in a Ruth-Aaron pair.
Trivia: 2492 is an unremarkable number.
Data storica: October 27th is the day in 1904 that the first underground New York City Subway line opens; the system becomes the biggest in United States, and one of the biggest in world.