939316128 has 24 divisors (see below), whose sum is σ = 2465705088. Its totient is φ = 313105344.

The previous prime is 939316117. The next prime is 939316153. The reversal of 939316128 is 821613939.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 939316128.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4892176 + ... + 4892367.

It is an arithmetic number, because the mean of its divisors is an integer number (102737712).

Almost surely, 2^939316128 is an apocalyptic number.

It is an amenable number.

939316128 is an abundant number, since it is smaller than the sum of its proper divisors (1526388960).

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

939316128 is a wasteful number, since it uses less digits than its factorization.

939316128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784556 (or 9784548 counting only the distinct ones).

The product of its digits is 69984, while the sum is 42.

The square root of 939316128 is about 30648.2646817075. The cubic root of 939316128 is about 979.3484938092.

The spelling of 939316128 in words is "nine hundred thirty-nine million, three hundred sixteen thousand, one hundred twenty-eight".