12039988 has 24 divisors (see below), whose sum is σ = 21934080. Its totient is φ = 5775840.

The previous prime is 12039947. The next prime is 12039991. The reversal of 12039988 is 88993021.

It is a super-2 number, since 2×12039988² = 289922622080288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12039988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31245 + ... + 31627.

It is an arithmetic number, because the mean of its divisors is an integer number (913920).

Almost surely, 2^12039988 is an apocalyptic number.

It is an amenable number.

12039988 is a deficient number, since it is larger than the sum of its proper divisors (9894092).

12039988 is a wasteful number, since it uses less digits than its factorization.

12039988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 685 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 12039988 is about 3469.8685854078. The cubic root of 12039988 is about 229.1968711850.

The spelling of 12039988 in words is "twelve million, thirty-nine thousand, nine hundred eighty-eight".