Fatto generale: 19404 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 19404 is an unremarkable number.
Trivia: 19404 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Data storica: February 14th is the day in 1924 that the Computing-Tabulating-Recording Company changes its name to International Business Machines Corporation (IBM).