Fatto generale: 20834 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 20834 is an unremarkable number.
Trivia: 20834 is a boring number.
Data storica: January 14th is the day in 1761 that the Third Battle of Panipat is fought in India between the Afghans under Ahmad Shah Durrani and the Marhatas.