939965880 has 128 divisors (see below), whose sum is σ = 3326791680. Its totient is φ = 207912960.

The previous prime is 939965843. The next prime is 939965881. The reversal of 939965880 is 88569939.

939965880 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 939965880.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939965881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7992 + ... + 44088.

It is an arithmetic number, because the mean of its divisors is an integer number (25990560).

Almost surely, 2^939965880 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 939965880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1663395840).

939965880 is an abundant number, since it is smaller than the sum of its proper divisors (2386825800).

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

939965880 is a wasteful number, since it uses less digits than its factorization.

939965880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36149 (or 36145 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 57.

The square root of 939965880 is about 30658.8629926160. The cubic root of 939965880 is about 979.5742562750.

The spelling of 939965880 in words is "nine hundred thirty-nine million, nine hundred sixty-five thousand, eight hundred eighty".