39972952 has 8 divisors (see below), whose sum is σ = 74949300. Its totient is φ = 19986472.

The previous prime is 39972949. The next prime is 39972997. The reversal of 39972952 is 25927993.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498302 + ... + 2498317.

Almost surely, 2^39972952 is an apocalyptic number.

It is an amenable number.

39972952 is a deficient number, since it is larger than the sum of its proper divisors (34976348).

39972952 is a wasteful number, since it uses less digits than its factorization.

39972952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996625 (or 4996621 counting only the distinct ones).

The product of its digits is 306180, while the sum is 46.

The square root of 39972952 is about 6322.4166265756. The cubic root of 39972952 is about 341.9180862380.

The spelling of 39972952 in words is "thirty-nine million, nine hundred seventy-two thousand, nine hundred fifty-two".