12646256 has 20 divisors (see below), whose sum is σ = 28002672. Its totient is φ = 5419776.

The previous prime is 12646253. The next prime is 12646261. The reversal of 12646256 is 65264621.

12646256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12646253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56345 + ... + 56568.

Almost surely, 2^12646256 is an apocalyptic number.

12646256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12646256 is an abundant number, since it is smaller than the sum of its proper divisors (15356416).

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

12646256 is a wasteful number, since it uses less digits than its factorization.

12646256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112928 (or 112922 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 12646256 is about 3556.1574768280. The cubic root of 12646256 is about 232.9810811878.

The spelling of 12646256 in words is "twelve million, six hundred forty-six thousand, two hundred fifty-six".