Fait général: 4049 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fait mathématique: 4049 is an unremarkable number.
Culture générale: 4049 is an uninteresting number.
Date historique: January 31st is the day in 1900 that Datu Muhammad Salleh is assassinated in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.