12925218 has 32 divisors (see below), whose sum is σ = 27158400. Its totient is φ = 4093056.

The previous prime is 12925207. The next prime is 12925223. The reversal of 12925218 is 81252921.

It is a super-2 number, since 2×12925218² = 334122520695048, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31398 + ... + 31806.

It is an arithmetic number, because the mean of its divisors is an integer number (848700).

Almost surely, 2^12925218 is an apocalyptic number.

12925218 is an abundant number, since it is smaller than the sum of its proper divisors (14233182).

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

12925218 is a wasteful number, since it uses less digits than its factorization.

12925218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666.

The product of its digits is 2880, while the sum is 30.

The square root of 12925218 is about 3595.1659210668. The cubic root of 12925218 is about 234.6817360581.

The spelling of 12925218 in words is "twelve million, nine hundred twenty-five thousand, two hundred eighteen".