12290904 has 24 divisors (see below), whose sum is σ = 33288060. Its totient is φ = 4096944.

The previous prime is 12290903. The next prime is 12290909. The reversal of 12290904 is 40909221.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×12290904² = 302132642274432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12290903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 85282 + ... + 85425.

Almost surely, 2^12290904 is an apocalyptic number.

It is an amenable number.

12290904 is an abundant number, since it is smaller than the sum of its proper divisors (20997156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12290904 is a wasteful number, since it uses less digits than its factorization.

12290904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170719 (or 170712 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12290904 is about 3505.8385587474. The cubic root of 12290904 is about 230.7781081713.

The spelling of 12290904 in words is "twelve million, two hundred ninety thousand, nine hundred four".