12642402 has 32 divisors (see below), whose sum is σ = 26127360. Its totient is φ = 4076240.

The previous prime is 12642397. The next prime is 12642437. The reversal of 12642402 is 20424621.

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, 24883 + ... + 25385.

It is an arithmetic number, because the mean of its divisors is an integer number (816480).

Almost surely, 2^12642402 is an apocalyptic number.

12642402 is an abundant number, since it is smaller than the sum of its proper divisors (13484958).

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

12642402 is a wasteful number, since it uses less digits than its factorization.

12642402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 12642402 is about 3555.6155585215. The cubic root of 12642402 is about 232.9574114599.

The spelling of 12642402 in words is "twelve million, six hundred forty-two thousand, four hundred two".