518413238 has 48 divisors (see below), whose sum is σ = 951865344. Its totient is φ = 210727440.

The previous prime is 518413213. The next prime is 518413321. The reversal of 518413238 is 832314815.

It is a happy number.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 518413198 and 518413207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 285353 + ... + 287163.

It is an arithmetic number, because the mean of its divisors is an integer number (19830528).

Almost surely, 2^518413238 is an apocalyptic number.

518413238 is a deficient number, since it is larger than the sum of its proper divisors (433452106).

518413238 is a wasteful number, since it uses less digits than its factorization.

518413238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977 (or 1970 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 518413238 is about 22768.6898612986. The cubic root of 518413238 is about 803.3263779674.

The spelling of 518413238 in words is "five hundred eighteen million, four hundred thirteen thousand, two hundred thirty-eight".