518338047 has 16 divisors (see below), whose sum is σ = 699978240. Its totient is φ = 341140800.

The previous prime is 518338019. The next prime is 518338099. The reversal of 518338047 is 740833815.

It is not a de Polignac number, because 518338047 - 2¹¹ = 518335999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 518337996 and 518338014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (514338047) 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, 242172 + ... + 244302.

It is an arithmetic number, because the mean of its divisors is an integer number (43748640).

Almost surely, 2^518338047 is an apocalyptic number.

518338047 is a deficient number, since it is larger than the sum of its proper divisors (181640193).

518338047 is a wasteful number, since it uses less digits than its factorization.

518338047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3134.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 518338047 is about 22767.0386084796. The cubic root of 518338047 is about 803.2875377593.

The spelling of 518338047 in words is "five hundred eighteen million, three hundred thirty-eight thousand, forty-seven".