317940418 has 8 divisors (see below), whose sum is σ = 484729020. Its totient is φ = 156364080.

The previous prime is 317940407. The next prime is 317940451. The reversal of 317940418 is 814049713.

It can be written as a sum of positive squares in 2 ways, for example, as 188595289 + 129345129 = 13733^2 + 11373^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×317940418² = 202172218796029448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302913 + ... + 1303156.

Almost surely, 2^317940418 is an apocalyptic number.

317940418 is a deficient number, since it is larger than the sum of its proper divisors (166788602).

317940418 is a wasteful number, since it uses less digits than its factorization.

317940418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2606132.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 317940418 is about 17830.8838255427. The cubic root of 317940418 is about 682.5197876072.

The spelling of 317940418 in words is "three hundred seventeen million, nine hundred forty thousand, four hundred eighteen".