39928104 has 48 divisors (see below), whose sum is σ = 114503220. Its totient is φ = 12526080.

The previous prime is 39928079. The next prime is 39928111. The reversal of 39928104 is 40182993.

It can be written as a sum of positive squares in 2 ways, for example, as 38415204 + 1512900 = 6198^2 + 1230^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15087 + ... + 17534.

Almost surely, 2^39928104 is an apocalyptic number.

39928104 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

39928104 is an abundant number, since it is smaller than the sum of its proper divisors (74575116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39928104 is a wasteful number, since it uses less digits than its factorization.

39928104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32650 (or 32643 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 39928104 is about 6318.8688861219. The cubic root of 39928104 is about 341.7901657320.

The spelling of 39928104 in words is "thirty-nine million, nine hundred twenty-eight thousand, one hundred four".