Fait général: 19489 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 19489 is a boring number.
Culture générale: 19489 is an uninteresting number.
Date historique: May 10th is the day in 1997 that the Maeslantkering, a storm surge barrier in the Netherlands that is one of the world's largest moving structures, is opened by Queen Beatrix.