518338372 has 12 divisors (see below), whose sum is σ = 926392320. Its totient is φ = 253654856.

The previous prime is 518338351. The next prime is 518338397. The reversal of 518338372 is 273833815.

It is a super-2 number, since 2×518338372² = 537349335775220768, which contains 22 as substring.

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, 1378372 + ... + 1378747.

It is an arithmetic number, because the mean of its divisors is an integer number (77199360).

Almost surely, 2^518338372 is an apocalyptic number.

It is an amenable number.

518338372 is a deficient number, since it is larger than the sum of its proper divisors (408053948).

518338372 is a wasteful number, since it uses less digits than its factorization.

518338372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757170 (or 2757168 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 518338372 is about 22767.0457459900. The cubic root of 518338372 is about 803.2877056474.

The spelling of 518338372 in words is "five hundred eighteen million, three hundred thirty-eight thousand, three hundred seventy-two".