38865020 has 12 divisors (see below), whose sum is σ = 81616584. Its totient is φ = 15546000.

The previous prime is 38864983. The next prime is 38865023. The reversal of 38865020 is 2056883.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38865023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971606 + ... + 971645.

It is an arithmetic number, because the mean of its divisors is an integer number (6801382).

Almost surely, 2^38865020 is an apocalyptic number.

It is an amenable number.

38865020 is an abundant number, since it is smaller than the sum of its proper divisors (42751564).

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

38865020 is a wasteful number, since it uses less digits than its factorization.

38865020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943260 (or 1943258 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 38865020 is about 6234.1815822127. The cubic root of 38865020 is about 338.7294564140.

The spelling of 38865020 in words is "thirty-eight million, eight hundred sixty-five thousand, twenty".