317540648 has 16 divisors (see below), whose sum is σ = 608057280. Its totient is φ = 155392048.

The previous prime is 317540621. The next prime is 317540669. The reversal of 317540648 is 846045713.

It is a super-3 number, since 3×317540648³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421886 + ... + 422637.

It is an arithmetic number, because the mean of its divisors is an integer number (38003580).

Almost surely, 2^317540648 is an apocalyptic number.

It is an amenable number.

317540648 is a deficient number, since it is larger than the sum of its proper divisors (290516632).

317540648 is a wasteful number, since it uses less digits than its factorization.

317540648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844576 (or 844572 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 317540648 is about 17819.6702550861. The cubic root of 317540648 is about 682.2336067606.

The spelling of 317540648 in words is "three hundred seventeen million, five hundred forty thousand, six hundred forty-eight".