318688768 has 40 divisors (see below), whose sum is σ = 638990352. Its totient is φ = 158785536.

The previous prime is 318688763. The next prime is 318688771. The reversal of 318688768 is 867886813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318688763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171621 + ... + 173467.

Almost surely, 2^318688768 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 318688768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (319495176).

318688768 is an abundant number, since it is smaller than the sum of its proper divisors (320301584).

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

318688768 is an equidigital number, since it uses as much as digits as its factorization.

318688768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202 (or 2186 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 55.

The square root of 318688768 is about 17851.8561499918. The cubic root of 318688768 is about 683.0548600525.

The spelling of 318688768 in words is "three hundred eighteen million, six hundred eighty-eight thousand, seven hundred sixty-eight".