12668256 has 36 divisors (see below), whose sum is σ = 36026172. Its totient is φ = 4222656.

The previous prime is 12668237. The next prime is 12668261. The reversal of 12668256 is 65286621.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 12668256.

It is a congruent number.

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, 21706 + ... + 22281.

It is an arithmetic number, because the mean of its divisors is an integer number (1000727).

Almost surely, 2^12668256 is an apocalyptic number.

12668256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12668256 is an abundant number, since it is smaller than the sum of its proper divisors (23357916).

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

12668256 is a wasteful number, since it uses less digits than its factorization.

12668256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44003 (or 43992 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 12668256 is about 3559.2493590644. The cubic root of 12668256 is about 233.1161044027.

The spelling of 12668256 in words is "twelve million, six hundred sixty-eight thousand, two hundred fifty-six".