12636412 has 12 divisors (see below), whose sum is σ = 22250536. Its totient is φ = 6279120.

The previous prime is 12636397. The next prime is 12636461. The reversal of 12636412 is 21463621.

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 3 ways as a sum of consecutive naturals, for example, 9039 + ... + 10342.

Almost surely, 2^12636412 is an apocalyptic number.

It is an amenable number.

12636412 is a deficient number, since it is larger than the sum of its proper divisors (9614124).

12636412 is a wasteful number, since it uses less digits than its factorization.

12636412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19548 (or 19546 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 12636412 is about 3554.7731291884. The cubic root of 12636412 is about 232.9206137233.

The spelling of 12636412 in words is "twelve million, six hundred thirty-six thousand, four hundred twelve".