12257004 has 12 divisors (see below), whose sum is σ = 28599704. Its totient is φ = 4085664.

The previous prime is 12256987. The next prime is 12257009. The reversal of 12257004 is 40075221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (21) 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 (12257009) 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 3 ways as a sum of consecutive naturals, for example, 510697 + ... + 510720.

Almost surely, 2^12257004 is an apocalyptic number.

It is an amenable number.

12257004 is an abundant number, since it is smaller than the sum of its proper divisors (16342700).

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

12257004 is a wasteful number, since it uses less digits than its factorization.

12257004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021424 (or 1021422 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 12257004 is about 3501.0004284490. Note that the first 3 decimals coincide. The cubic root of 12257004 is about 230.5657402403.

The spelling of 12257004 in words is "twelve million, two hundred fifty-seven thousand, four".