12942972 has 36 divisors (see below), whose sum is σ = 37391536. Its totient is φ = 3697920.

The previous prime is 12942959. The next prime is 12942977. The reversal of 12942972 is 27924921.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12942977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25429 + ... + 25932.

Almost surely, 2^12942972 is an apocalyptic number.

12942972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12942972 is an abundant number, since it is smaller than the sum of its proper divisors (24448564).

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

12942972 is a wasteful number, since it uses less digits than its factorization.

12942972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51378 (or 51373 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 12942972 is about 3597.6342226524. The cubic root of 12942972 is about 234.7891393603.

The spelling of 12942972 in words is "twelve million, nine hundred forty-two thousand, nine hundred seventy-two".