38865660 has 48 divisors (see below), whose sum is σ = 110678400. Its totient is φ = 10187584.

The previous prime is 38865649. The next prime is 38865703. The reversal of 38865660 is 6656883.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1950 + ... + 9029.

It is an arithmetic number, because the mean of its divisors is an integer number (2305800).

Almost surely, 2^38865660 is an apocalyptic number.

38865660 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

38865660 is an abundant number, since it is smaller than the sum of its proper divisors (71812740).

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

38865660 is a wasteful number, since it uses less digits than its factorization.

38865660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11050 (or 11048 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 38865660 is about 6234.2329119147. The cubic root of 38865660 is about 338.7313157181.

The spelling of 38865660 in words is "thirty-eight million, eight hundred sixty-five thousand, six hundred sixty".