Fatto generale: 2734 is a number for which we're missing a fact (submit one to numbersapi at google mail!).
Fatto matematico: 2734 is an uninteresting number.
Trivia: 2734 is an uninteresting number.
Data storica: June 26th is the day in 1948 that William Shockley files the original patent for the grown junction transistor, the first bipolar junction transistor.