939081920 has 112 divisors (see below), whose sum is σ = 2586947328. Its totient is φ = 318028800.

The previous prime is 939081919. The next prime is 939081947. The reversal of 939081920 is 29180939.

It is a tau number, because it is divible by the number of its divisors (112).

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, 183395 + ... + 188445.

It is an arithmetic number, because the mean of its divisors is an integer number (23097744).

Almost surely, 2^939081920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 939081920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1293473664).

939081920 is an abundant number, since it is smaller than the sum of its proper divisors (1647865408).

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

939081920 is a wasteful number, since it uses less digits than its factorization.

939081920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158 (or 5148 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 939081920 is about 30644.4435420192. The cubic root of 939081920 is about 979.2670905019.

The spelling of 939081920 in words is "nine hundred thirty-nine million, eighty-one thousand, nine hundred twenty".