12638368 has 24 divisors (see below), whose sum is σ = 25044768. Its totient is φ = 6277824.

The previous prime is 12638357. The next prime is 12638369. The reversal of 12638368 is 86383621.

It is not an unprimeable number, because it can be changed into a prime (12638369) 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, 4005 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (1043532).

Almost surely, 2^12638368 is an apocalyptic number.

It is an amenable number.

12638368 is a deficient number, since it is larger than the sum of its proper divisors (12406400).

12638368 is a wasteful number, since it uses less digits than its factorization.

12638368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596 (or 2588 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 12638368 is about 3555.0482415855. The cubic root of 12638368 is about 232.9326310907.

The spelling of 12638368 in words is "twelve million, six hundred thirty-eight thousand, three hundred sixty-eight".