39279972 has 24 divisors (see below), whose sum is σ = 92685600. Its totient is φ = 12945856.

The previous prime is 39279967. The next prime is 39279983. The reversal of 39279972 is 27997293.

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, 17322 + ... + 19457.

It is an arithmetic number, because the mean of its divisors is an integer number (3861900).

Almost surely, 2^39279972 is an apocalyptic number.

It is an amenable number.

39279972 is an abundant number, since it is smaller than the sum of its proper divisors (53405628).

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

39279972 is a wasteful number, since it uses less digits than its factorization.

39279972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36875 (or 36873 counting only the distinct ones).

The product of its digits is 428652, while the sum is 48.

The square root of 39279972 is about 6267.3736126068. The cubic root of 39279972 is about 339.9307009860.

The spelling of 39279972 in words is "thirty-nine million, two hundred seventy-nine thousand, nine hundred seventy-two".