39972364 has 6 divisors (see below), whose sum is σ = 69951644. Its totient is φ = 19986180.

The previous prime is 39972349. The next prime is 39972377. The reversal of 39972364 is 46327993.

It is a self number, because there is not a number n which added to its sum of digits gives 39972364.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996542 + ... + 4996549.

Almost surely, 2^39972364 is an apocalyptic number.

It is an amenable number.

39972364 is a deficient number, since it is larger than the sum of its proper divisors (29979280).

39972364 is a wasteful number, since it uses less digits than its factorization.

39972364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9993095 (or 9993093 counting only the distinct ones).

The product of its digits is 244944, while the sum is 43.

The square root of 39972364 is about 6322.3701251983. The cubic root of 39972364 is about 341.9164096975.

The spelling of 39972364 in words is "thirty-nine million, nine hundred seventy-two thousand, three hundred sixty-four".