12638884 has 6 divisors (see below), whose sum is σ = 22118054. Its totient is φ = 6319440.

The previous prime is 12638849. The next prime is 12638893. The reversal of 12638884 is 48883621.

It can be written as a sum of positive squares in only one way, i.e., 10304100 + 2334784 = 3210^2 + 1528^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579857 + ... + 1579864.

Almost surely, 2^12638884 is an apocalyptic number.

It is an amenable number.

12638884 is a deficient number, since it is larger than the sum of its proper divisors (9479170).

12638884 is a wasteful number, since it uses less digits than its factorization.

12638884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159725 (or 3159723 counting only the distinct ones).

The product of its digits is 73728, while the sum is 40.

The square root of 12638884 is about 3555.1208136996. The cubic root of 12638884 is about 232.9358011097.

The spelling of 12638884 in words is "twelve million, six hundred thirty-eight thousand, eight hundred eighty-four".