317478280 has 32 divisors (see below), whose sum is σ = 816373440. Its totient is φ = 108849600.

The previous prime is 317478263. The next prime is 317478289. The reversal of 317478280 is 82874713.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (317478289) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 566646 + ... + 567205.

It is an arithmetic number, because the mean of its divisors is an integer number (25511670).

Almost surely, 2^317478280 is an apocalyptic number.

It is an amenable number.

317478280 is an abundant number, since it is smaller than the sum of its proper divisors (498895160).

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

317478280 is a wasteful number, since it uses less digits than its factorization.

317478280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133869 (or 1133865 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 317478280 is about 17817.9201928845. The cubic root of 317478280 is about 682.1889381154.

The spelling of 317478280 in words is "three hundred seventeen million, four hundred seventy-eight thousand, two hundred eighty".