316136808 has 72 divisors (see below), whose sum is σ = 927167670. Its totient is φ = 97269120.

The previous prime is 316136797. The next prime is 316136813. The reversal of 316136808 is 808631613.

316136808 is a `hidden beast` number, since 31 + 613 + 6 + 8 + 0 + 8 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 164403684 + 151733124 = 12822^2 + 12318^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 823 + ... + 25158.

Almost surely, 2^316136808 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 316136808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463583835).

316136808 is an abundant number, since it is smaller than the sum of its proper divisors (611030862).

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

316136808 is a wasteful number, since it uses less digits than its factorization.

316136808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26019 (or 25999 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 316136808 is about 17780.2364438722. The cubic root of 316136808 is about 681.2267417585.

The spelling of 316136808 in words is "three hundred sixteen million, one hundred thirty-six thousand, eight hundred eight".