518993464 has 16 divisors (see below), whose sum is σ = 1061577720. Its totient is φ = 235906080.

The previous prime is 518993407. The next prime is 518993477. The reversal of 518993464 is 464399815.

It is a happy number.

It is a congruent number.

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, 2948739 + ... + 2948914.

Almost surely, 2^518993464 is an apocalyptic number.

It is an amenable number.

518993464 is an abundant number, since it is smaller than the sum of its proper divisors (542584256).

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

518993464 is a wasteful number, since it uses less digits than its factorization.

518993464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897670 (or 5897666 counting only the distinct ones).

The product of its digits is 933120, while the sum is 49.

The square root of 518993464 is about 22781.4280500587. The cubic root of 518993464 is about 803.6259697660.

The spelling of 518993464 in words is "five hundred eighteen million, nine hundred ninety-three thousand, four hundred sixty-four".