12642436 has 12 divisors (see below), whose sum is σ = 22595328. Its totient is φ = 6186632.

The previous prime is 12642397. The next prime is 12642437. The reversal of 12642436 is 63424621.

It is a super-3 number, since 3×12642436³ (a number of 22 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12642437) 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, 33436 + ... + 33811.

It is an arithmetic number, because the mean of its divisors is an integer number (1882944).

Almost surely, 2^12642436 is an apocalyptic number.

It is an amenable number.

12642436 is a deficient number, since it is larger than the sum of its proper divisors (9952892).

12642436 is a wasteful number, since it uses less digits than its factorization.

12642436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67298 (or 67296 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 12642436 is about 3555.6203396876. The cubic root of 12642436 is about 232.9576202954.

The spelling of 12642436 in words is "twelve million, six hundred forty-two thousand, four hundred thirty-six".