39928088 has 8 divisors (see below), whose sum is σ = 74865180. Its totient is φ = 19964040.

The previous prime is 39928079. The next prime is 39928111. The reversal of 39928088 is 88082993.

It is a happy number.

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

It is a super-2 number, since 2×39928088² = 3188504422671488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2495498 + ... + 2495513.

Almost surely, 2^39928088 is an apocalyptic number.

It is an amenable number.

39928088 is a deficient number, since it is larger than the sum of its proper divisors (34937092).

39928088 is a wasteful number, since it uses less digits than its factorization.

39928088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4991017 (or 4991013 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 39928088 is about 6318.8676200724. The cubic root of 39928088 is about 341.7901200779.

The spelling of 39928088 in words is "thirty-nine million, nine hundred twenty-eight thousand, eighty-eight".