Hecho general: 90450 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Hecho matemático: 90450 is a boring number.
Trivia: 90450 is an uninteresting number.
Fecha histórica: August 23rd is the day in 1650 that Colonel George Monck of the English Army forms Monck's Regiment of Foot, which will later become the Coldstream Guards.