38685680 has 40 divisors (see below), whose sum is σ = 98123184. Its totient is φ = 14067200.

The previous prime is 38685677. The next prime is 38685721. The reversal of 38685680 is 8658683.

38685680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21101 + ... + 22860.

Almost surely, 2^38685680 is an apocalyptic number.

It is an amenable number.

38685680 is an abundant number, since it is smaller than the sum of its proper divisors (59437504).

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

38685680 is a wasteful number, since it uses less digits than its factorization.

38685680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43985 (or 43979 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 38685680 is about 6219.7813466391. The cubic root of 38685680 is about 338.2076382532.

The spelling of 38685680 in words is "thirty-eight million, six hundred eighty-five thousand, six hundred eighty".