518346738 has 96 divisors (see below), whose sum is σ = 1411877376. Its totient is φ = 133778304.

The previous prime is 518346721. The next prime is 518346749. The reversal of 518346738 is 837643815.

518346738 is a `hidden beast` number, since 5 + 183 + 467 + 3 + 8 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 518346693 and 518346702.

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 47 ways as a sum of consecutive naturals, for example, 73620 + ... + 80352.

It is an arithmetic number, because the mean of its divisors is an integer number (14707056).

Almost surely, 2^518346738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 518346738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705938688).

518346738 is an abundant number, since it is smaller than the sum of its proper divisors (893530638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

518346738 is a wasteful number, since it uses less digits than its factorization.

518346738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808 (or 6805 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 518346738 is about 22767.2294757179. The cubic root of 518346738 is about 803.2920273216.

The spelling of 518346738 in words is "five hundred eighteen million, three hundred forty-six thousand, seven hundred thirty-eight".