516979380 has 24 divisors (see below), whose sum is σ = 1447542432. Its totient is φ = 137861152.

The previous prime is 516979369. The next prime is 516979423. The reversal of 516979380 is 83979615.

516979380 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 4308102 + ... + 4308221.

It is an arithmetic number, because the mean of its divisors is an integer number (60314268).

Almost surely, 2^516979380 is an apocalyptic number.

It is an amenable number.

516979380 is an abundant number, since it is smaller than the sum of its proper divisors (930563052).

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

516979380 is a wasteful number, since it uses less digits than its factorization.

516979380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8616335 (or 8616333 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 516979380 is about 22737.1805640013. The cubic root of 516979380 is about 802.5850648854.

The spelling of 516979380 in words is "five hundred sixteen million, nine hundred seventy-nine thousand, three hundred eighty".