516391374 has 8 divisors (see below), whose sum is σ = 1032782760. Its totient is φ = 172130456.

The previous prime is 516391361. The next prime is 516391399. The reversal of 516391374 is 473193615.

It is a sphenic number, since it is the product of 3 distinct primes.

516391374 is an admirable number.

It is a super-2 number, since 2×516391374² = 533320102283215752, which contains 22 as substring.

It is a Curzon 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, 43032609 + ... + 43032620.

It is an arithmetic number, because the mean of its divisors is an integer number (129097845).

Almost surely, 2^516391374 is an apocalyptic number.

516391374 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

516391374 is a wasteful number, since it uses less digits than its factorization.

516391374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86065234.

The product of its digits is 68040, while the sum is 39.

The square root of 516391374 is about 22724.2463901446. The cubic root of 516391374 is about 802.2806659832.

The spelling of 516391374 in words is "five hundred sixteen million, three hundred ninety-one thousand, three hundred seventy-four".