518308401 has 16 divisors (see below), whose sum is σ = 749677824. Its totient is φ = 316627584.

The previous prime is 518308397. The next prime is 518308403. The reversal of 518308401 is 104803815.

It is not a de Polignac number, because 518308401 - 2² = 518308397 is a prime.

It is not an unprimeable number, because it can be changed into a prime (518308403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43161 + ... + 53846.

It is an arithmetic number, because the mean of its divisors is an integer number (46854864).

Almost surely, 2^518308401 is an apocalyptic number.

It is an amenable number.

518308401 is a deficient number, since it is larger than the sum of its proper divisors (231369423).

518308401 is a wasteful number, since it uses less digits than its factorization.

518308401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97160.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 518308401 is about 22766.3875263512. The cubic root of 518308401 is about 803.2722229684.

The spelling of 518308401 in words is "five hundred eighteen million, three hundred eight thousand, four hundred one".