316487640 has 256 divisors, whose sum is σ = 1181952000. Its totient is φ = 66134016.

The previous prime is 316487629. The next prime is 316487653. The reversal of 316487640 is 46784613.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 528061 + ... + 528659.

It is an arithmetic number, because the mean of its divisors is an integer number (4617000).

Almost surely, 2^316487640 is an apocalyptic number.

316487640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 316487640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590976000).

316487640 is an abundant number, since it is smaller than the sum of its proper divisors (865464360).

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

316487640 is a wasteful number, since it uses less digits than its factorization.

316487640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674 (or 670 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 316487640 is about 17790.0994938196. The cubic root of 316487640 is about 681.4786451331.

The spelling of 316487640 in words is "three hundred sixteen million, four hundred eighty-seven thousand, six hundred forty".