518606413 has 24 divisors (see below), whose sum is σ = 579744000. Its totient is φ = 463454784.

The previous prime is 518606383. The next prime is 518606419. The reversal of 518606413 is 314606815.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-518606413 is a prime.

It is a super-2 number, since 2×518606413² = 537905223209453138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (518606419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865488 + ... + 866086.

It is an arithmetic number, because the mean of its divisors is an integer number (24156000).

Almost surely, 2^518606413 is an apocalyptic number.

It is an amenable number.

518606413 is a deficient number, since it is larger than the sum of its proper divisors (61137587).

518606413 is a wasteful number, since it uses less digits than its factorization.

518606413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 518606413 is about 22772.9315855469. The cubic root of 518606413 is about 803.4261460614.

The spelling of 518606413 in words is "five hundred eighteen million, six hundred six thousand, four hundred thirteen".