979938380 has 24 divisors (see below), whose sum is σ = 2059706880. Its totient is φ = 391625600.

The previous prime is 979938371. The next prime is 979938397. The reversal of 979938380 is 83839979.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1736 + ... + 44304.

It is an arithmetic number, because the mean of its divisors is an integer number (85821120).

Almost surely, 2^979938380 is an apocalyptic number.

It is an amenable number.

979938380 is an abundant number, since it is smaller than the sum of its proper divisors (1079768500).

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

979938380 is a wasteful number, since it uses less digits than its factorization.

979938380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43729 (or 43727 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 56.

The square root of 979938380 is about 31303.9674801773. The cubic root of 979938380 is about 993.2675694291.

The spelling of 979938380 in words is "nine hundred seventy-nine million, nine hundred thirty-eight thousand, three hundred eighty".