318531696 has 160 divisors (see below), whose sum is σ = 990793728. Its totient is φ = 86261760.

The previous prime is 318531683. The next prime is 318531701. The reversal of 318531696 is 696135813.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 551760 + ... + 552336.

Almost surely, 2^318531696 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 318531696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495396864).

318531696 is an abundant number, since it is smaller than the sum of its proper divisors (672262032).

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

318531696 is a wasteful number, since it uses less digits than its factorization.

318531696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its digits is 116640, while the sum is 42.

The square root of 318531696 is about 17847.4562893427. The cubic root of 318531696 is about 682.9426226231.

The spelling of 318531696 in words is "three hundred eighteen million, five hundred thirty-one thousand, six hundred ninety-six".