316516530 has 64 divisors (see below), whose sum is σ = 844380288. Its totient is φ = 75279360.

The previous prime is 316516513. The next prime is 316516561. The reversal of 316516530 is 35615613.

316516530 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon 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, 8442 + ... + 26538.

It is an arithmetic number, because the mean of its divisors is an integer number (13193442).

Almost surely, 2^316516530 is an apocalyptic number.

316516530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 316516530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422190144).

316516530 is an abundant number, since it is smaller than the sum of its proper divisors (527863758).

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

316516530 is a wasteful number, since it uses less digits than its factorization.

316516530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18171.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 316516530 is about 17790.9114437681. The cubic root of 316516530 is about 681.4993803494.

The spelling of 316516530 in words is "three hundred sixteen million, five hundred sixteen thousand, five hundred thirty".