39910916 has 12 divisors (see below), whose sum is σ = 69888588. Its totient is φ = 19942752.

The previous prime is 39910903. The next prime is 39910933. The reversal of 39910916 is 61901993.

It can be written as a sum of positive squares in 2 ways, for example, as 19624900 + 20286016 = 4430^2 + 4504^2 .

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 39910916.

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 in 3 ways as a sum of consecutive naturals, for example, 9590 + ... + 13106.

It is an arithmetic number, because the mean of its divisors is an integer number (5824049).

Almost surely, 2^39910916 is an apocalyptic number.

It is an amenable number.

39910916 is a deficient number, since it is larger than the sum of its proper divisors (29977672).

39910916 is a wasteful number, since it uses less digits than its factorization.

39910916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6358 (or 6356 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 38.

The square root of 39910916 is about 6317.5086861832. The cubic root of 39910916 is about 341.7411147967.

The spelling of 39910916 in words is "thirty-nine million, nine hundred ten thousand, nine hundred sixteen".