12690392 has 32 divisors (see below), whose sum is σ = 27956880. Its totient is φ = 5324160.

The previous prime is 12690389. The next prime is 12690401. The reversal of 12690392 is 29309621.

It is a super-2 number, since 2×12690392² = 322092098227328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4403 + ... + 6690.

Almost surely, 2^12690392 is an apocalyptic number.

It is an amenable number.

12690392 is an abundant number, since it is smaller than the sum of its proper divisors (15266488).

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

12690392 is a wasteful number, since it uses less digits than its factorization.

12690392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11123 (or 11119 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 12690392 is about 3562.3576462787. The cubic root of 12690392 is about 233.2518046230.

The spelling of 12690392 in words is "twelve million, six hundred ninety thousand, three hundred ninety-two".