516388974 has 16 divisors (see below), whose sum is σ = 1093529808. Its totient is φ = 162004352.

The previous prime is 516388969. The next prime is 516388981. The reversal of 516388974 is 479883615.

It is a Harshad number since it is a multiple of its sum of digits (51).

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, 2531217 + ... + 2531420.

It is an arithmetic number, because the mean of its divisors is an integer number (68345613).

Almost surely, 2^516388974 is an apocalyptic number.

516388974 is an abundant number, since it is smaller than the sum of its proper divisors (577140834).

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

516388974 is a wasteful number, since it uses less digits than its factorization.

516388974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062659.

The product of its digits is 1451520, while the sum is 51.

The square root of 516388974 is about 22724.1935830515. The cubic root of 516388974 is about 802.2794230780.

The spelling of 516388974 in words is "five hundred sixteen million, three hundred eighty-eight thousand, nine hundred seventy-four".