12642904 has 16 divisors (see below), whose sum is σ = 24953400. Its totient is φ = 5988672.

The previous prime is 12642901. The next prime is 12642907. The reversal of 12642904 is 40924621.

It is an interprime number because it is at equal distance from previous prime (12642901) and next prime (12642907).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12642901) 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, 41437 + ... + 41740.

Almost surely, 2^12642904 is an apocalyptic number.

It is an amenable number.

12642904 is a deficient number, since it is larger than the sum of its proper divisors (12310496).

12642904 is a wasteful number, since it uses less digits than its factorization.

12642904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83202 (or 83198 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 12642904 is about 3555.6861503794. The cubic root of 12642904 is about 232.9604948158.

The spelling of 12642904 in words is "twelve million, six hundred forty-two thousand, nine hundred four".