520318738 has 8 divisors (see below), whose sum is σ = 780869232. Its totient is φ = 260028996.

The previous prime is 520318693. The next prime is 520318763. The reversal of 520318738 is 837813025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×520318738² = 541463178227825288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520318697 and 520318706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60120 + ... + 68227.

It is an arithmetic number, because the mean of its divisors is an integer number (97608654).

Almost surely, 2^520318738 is an apocalyptic number.

520318738 is a deficient number, since it is larger than the sum of its proper divisors (260550494).

520318738 is a wasteful number, since it uses less digits than its factorization.

520318738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130376.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 520318738 is about 22810.4962243262. The cubic root of 520318738 is about 804.3094204779.

The spelling of 520318738 in words is "five hundred twenty million, three hundred eighteen thousand, seven hundred thirty-eight".