12339972 has 24 divisors (see below), whose sum is σ = 31992800. Its totient is φ = 4113288.

The previous prime is 12339967. The next prime is 12339979. The reversal of 12339972 is 27993321.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12339979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57022 + ... + 57237.

Almost surely, 2^12339972 is an apocalyptic number.

12339972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12339972 is an abundant number, since it is smaller than the sum of its proper divisors (19652828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12339972 is a wasteful number, since it uses less digits than its factorization.

12339972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114272 (or 114264 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 12339972 is about 3512.8296286612. The cubic root of 12339972 is about 231.0848061023.

The spelling of 12339972 in words is "twelve million, three hundred thirty-nine thousand, nine hundred seventy-two".