1842

1842 = 2 x 3 x 307.

1842 is 11100110010 in base 2 (binary).

1842 is the number of rooted trees with 11 vertices (A000081).

1842 is 666 in base 17.

1842 is a number n such that p(n), p(n) + 6, p(n) + 12, and p(n) + 18 are consecutive primes, where p(n) denotes the nth prime (A090832): 15791, 15797, 15803, and 15809 are all primes.

1842 is the sum of eight nonzero 6th powers (A003364).

Source: What's Special About This Number?