12256864 has 24 divisors (see below), whose sum is σ = 25551288. Its totient is φ = 5767680.

The previous prime is 12256831. The next prime is 12256883. The reversal of 12256864 is 46865221.

It is a super-2 number, since 2×12256864² = 300461430228992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10722 + ... + 11809.

It is an arithmetic number, because the mean of its divisors is an integer number (1064637).

Almost surely, 2^12256864 is an apocalyptic number.

It is an amenable number.

12256864 is an abundant number, since it is smaller than the sum of its proper divisors (13294424).

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

12256864 is a wasteful number, since it uses less digits than its factorization.

12256864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22558 (or 22550 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 12256864 is about 3500.9804341070. The cubic root of 12256864 is about 230.5648623932.

The spelling of 12256864 in words is "twelve million, two hundred fifty-six thousand, eight hundred sixty-four".