316579540 has 12 divisors (see below), whose sum is σ = 664817076. Its totient is φ = 126631808.

The previous prime is 316579531. The next prime is 316579541. The reversal of 316579540 is 45975613.

It can be written as a sum of positive squares in 2 ways, for example, as 61027344 + 255552196 = 7812^2 + 15986^2 .

It is a super-2 number, since 2×316579540² = 200445210293223200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 316579493 and 316579502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316579541) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 7914469 + ... + 7914508.

It is an arithmetic number, because the mean of its divisors is an integer number (55401423).

Almost surely, 2^316579540 is an apocalyptic number.

It is an amenable number.

316579540 is an abundant number, since it is smaller than the sum of its proper divisors (348237536).

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

316579540 is a wasteful number, since it uses less digits than its factorization.

316579540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15828986 (or 15828984 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 40.

The square root of 316579540 is about 17792.6822036477. The cubic root of 316579540 is about 681.5446001328.

The spelling of 316579540 in words is "three hundred sixteen million, five hundred seventy-nine thousand, five hundred forty".