12856044 has 12 divisors (see below), whose sum is σ = 29997464. Its totient is φ = 4285344.

The previous prime is 12856037. The next prime is 12856069. The reversal of 12856044 is 44065821.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535657 + ... + 535680.

Almost surely, 2^12856044 is an apocalyptic number.

It is an amenable number.

12856044 is an abundant number, since it is smaller than the sum of its proper divisors (17141420).

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

12856044 is a wasteful number, since it uses less digits than its factorization.

12856044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071344 (or 1071342 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 12856044 is about 3585.5325964213. The cubic root of 12856044 is about 234.2623254321.

The spelling of 12856044 in words is "twelve million, eight hundred fifty-six thousand, forty-four".