39939292 has 12 divisors (see below), whose sum is σ = 73572520. Its totient is φ = 18918576.

The previous prime is 39939281. The next prime is 39939329. The reversal of 39939292 is 29293993.

39939292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×39939292² = 3190294090922528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262683 + ... + 262834.

Almost surely, 2^39939292 is an apocalyptic number.

It is an amenable number.

39939292 is a deficient number, since it is larger than the sum of its proper divisors (33633228).

39939292 is a wasteful number, since it uses less digits than its factorization.

39939292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525540 (or 525538 counting only the distinct ones).

The product of its digits is 236196, while the sum is 46.

The square root of 39939292 is about 6319.7541091406. The cubic root of 39939292 is about 341.8220863667.

The spelling of 39939292 in words is "thirty-nine million, nine hundred thirty-nine thousand, two hundred ninety-two".