12556044 has 18 divisors (see below), whose sum is σ = 31738980. Its totient is φ = 4185336.

The previous prime is 12556039. The next prime is 12556067. The reversal of 12556044 is 44065521.

12556044 is a `hidden beast` number, since 1 + 2 + 55 + 604 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 12555999 and 12556017.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 174354 + ... + 174425.

Almost surely, 2^12556044 is an apocalyptic number.

It is an amenable number.

12556044 is an abundant number, since it is smaller than the sum of its proper divisors (19182936).

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

12556044 is a wasteful number, since it uses less digits than its factorization.

12556044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348789 (or 348784 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 12556044 is about 3543.4508603902. The cubic root of 12556044 is about 232.4257688797.

It can be divided in two parts, 125 and 56044, that added together give a square (56169 = 237²).

The spelling of 12556044 in words is "twelve million, five hundred fifty-six thousand, forty-four".