5218318238 has 16 divisors (see below), whose sum is σ = 8977989984. Its totient is φ = 2228346720.

The previous prime is 5218318229. The next prime is 5218318241. The reversal of 5218318238 is 8328138125.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 5218318195 and 5218318204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668933 + ... + 676688.

It is an arithmetic number, because the mean of its divisors is an integer number (561124374).

Almost surely, 2^5218318238 is an apocalyptic number.

5218318238 is a deficient number, since it is larger than the sum of its proper divisors (3759671746).

5218318238 is a wasteful number, since it uses less digits than its factorization.

5218318238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345907.

The product of its digits is 92160, while the sum is 41.

The square root of 5218318238 is about 72237.9279741605. The cubic root of 5218318238 is about 1734.5101821653.

The spelling of 5218318238 in words is "five billion, two hundred eighteen million, three hundred eighteen thousand, two hundred thirty-eight".