518980393 has 8 divisors (see below), whose sum is σ = 543269376. Its totient is φ = 495163200.

The previous prime is 518980391. The next prime is 518980409. The reversal of 518980393 is 393089815.

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

It is a cyclic number.

It is not a de Polignac number, because 518980393 - 2¹ = 518980391 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (518980391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115696 + ... + 120097.

It is an arithmetic number, because the mean of its divisors is an integer number (67908672).

Almost surely, 2^518980393 is an apocalyptic number.

It is an amenable number.

518980393 is a deficient number, since it is larger than the sum of its proper divisors (24288983).

518980393 is a wasteful number, since it uses less digits than its factorization.

518980393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235895.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 518980393 is about 22781.1411698361. The cubic root of 518980393 is about 803.6192231922.

The spelling of 518980393 in words is "five hundred eighteen million, nine hundred eighty thousand, three hundred ninety-three".