39988056 has 64 divisors (see below), whose sum is σ = 102664800. Its totient is φ = 12976128.

The previous prime is 39988043. The next prime is 39988073. The reversal of 39988056 is 65088993.

It is a junction number, because it is equal to n+sod(n) for n = 39987996 and 39988014.

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 15 ways as a sum of consecutive naturals, for example, 207096 + ... + 207288.

Almost surely, 2^39988056 is an apocalyptic number.

It is an amenable number.

39988056 is an abundant number, since it is smaller than the sum of its proper divisors (62676744).

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

39988056 is a wasteful number, since it uses less digits than its factorization.

39988056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 39988056 is about 6323.6109937282. The cubic root of 39988056 is about 341.9611460255.

The spelling of 39988056 in words is "thirty-nine million, nine hundred eighty-eight thousand, fifty-six".