939938664 has 64 divisors (see below), whose sum is σ = 2826892800. Its totient is φ = 254418624.

The previous prime is 939938663. The next prime is 939938707. The reversal of 939938664 is 466839939.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (939938663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144042 + ... + 150425.

It is an arithmetic number, because the mean of its divisors is an integer number (44170200).

Almost surely, 2^939938664 is an apocalyptic number.

It is an amenable number.

939938664 is an abundant number, since it is smaller than the sum of its proper divisors (1886954136).

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

939938664 is a wasteful number, since it uses less digits than its factorization.

939938664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294502 (or 294498 counting only the distinct ones).

The product of its digits is 7558272, while the sum is 57.

The square root of 939938664 is about 30658.4191373267. The cubic root of 939938664 is about 979.5648019069.

The spelling of 939938664 in words is "nine hundred thirty-nine million, nine hundred thirty-eight thousand, six hundred sixty-four".