39402856 has 16 divisors (see below), whose sum is σ = 74599200. Its totient is φ = 19509744.

The previous prime is 39402833. The next prime is 39402859. The reversal of 39402856 is 65820493.

39402856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (39402859) by changing a digit.

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, 23086 + ... + 24733.

It is an arithmetic number, because the mean of its divisors is an integer number (4662450).

Almost surely, 2^39402856 is an apocalyptic number.

It is an amenable number.

39402856 is a deficient number, since it is larger than the sum of its proper divisors (35196344).

39402856 is a wasteful number, since it uses less digits than its factorization.

39402856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47928 (or 47924 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 39402856 is about 6277.1694257842. The cubic root of 39402856 is about 340.2848132524.

The spelling of 39402856 in words is "thirty-nine million, four hundred two thousand, eight hundred fifty-six".