12438988 has 6 divisors (see below), whose sum is σ = 21768236. Its totient is φ = 6219492.

The previous prime is 12438983. The next prime is 12439003. The reversal of 12438988 is 88983421.

It is not an unprimeable number, because it can be changed into a prime (12438983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1554870 + ... + 1554877.

Almost surely, 2^12438988 is an apocalyptic number.

It is an amenable number.

12438988 is a deficient number, since it is larger than the sum of its proper divisors (9329248).

12438988 is a wasteful number, since it uses less digits than its factorization.

12438988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3109751 (or 3109749 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 12438988 is about 3526.8949516536. The cubic root of 12438988 is about 231.7012355180.

The spelling of 12438988 in words is "twelve million, four hundred thirty-eight thousand, nine hundred eighty-eight".