518197272 has 16 divisors (see below), whose sum is σ = 1295493240. Its totient is φ = 172732416.

The previous prime is 518197187. The next prime is 518197283. The reversal of 518197272 is 272791815.

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, 10795753 + ... + 10795800.

Almost surely, 2^518197272 is an apocalyptic number.

It is an amenable number.

518197272 is an abundant number, since it is smaller than the sum of its proper divisors (777295968).

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

518197272 is a wasteful number, since it uses less digits than its factorization.

518197272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21591562 (or 21591558 counting only the distinct ones).

The product of its digits is 70560, while the sum is 42.

The square root of 518197272 is about 22763.9467579767. The cubic root of 518197272 is about 803.2148097762.

The spelling of 518197272 in words is "five hundred eighteen million, one hundred ninety-seven thousand, two hundred seventy-two".