Fatto generale: 5460 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 5460 is both a triangular number and 7 times a triangular number.
Trivia: 5460 is a boring number.
Data storica: December 12th is the day in 2011 that the last Soldiers of the 1st Cavalry Division leave Iraq as part of troop drawdown marking the end of their part in the 8 year war.