Fatto generale: 18748 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 18748 is an uninteresting number.
Trivia: 18748 is an unremarkable number.
Data storica: April 30th is the day in 1927 that Douglas Fairbanks and Mary Pickford become the first celebrities to leave their footprints in concrete at Grauman's Chinese Theater in Hollywood.