318936680 has 48 divisors (see below), whose sum is σ = 741592260. Its totient is φ = 123444480.

The previous prime is 318936659. The next prime is 318936697. The reversal of 318936680 is 86639813.

It can be written as a sum of positive squares in 2 ways, for example, as 294946276 + 23990404 = 17174^2 + 4898^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34292 + ... + 42588.

Almost surely, 2^318936680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 318936680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370796130).

318936680 is an abundant number, since it is smaller than the sum of its proper divisors (422655580).

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

318936680 is a wasteful number, since it uses less digits than its factorization.

318936680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370 (or 8335 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 318936680 is about 17858.7983918292. The cubic root of 318936680 is about 683.2319331329.

The spelling of 318936680 in words is "three hundred eighteen million, nine hundred thirty-six thousand, six hundred eighty".