317340240 has 160 divisors (see below), whose sum is σ = 1148497920. Its totient is φ = 70973952.

The previous prime is 317340229. The next prime is 317340281. The reversal of 317340240 is 42043713.

317340240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 317340240.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 76951 + ... + 80969.

It is an arithmetic number, because the mean of its divisors is an integer number (7178112).

Almost surely, 2^317340240 is an apocalyptic number.

317340240 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 317340240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574248960).

317340240 is an abundant number, since it is smaller than the sum of its proper divisors (831157680).

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

317340240 is a wasteful number, since it uses less digits than its factorization.

317340240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4089 (or 4083 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 317340240 is about 17814.0461434229. The cubic root of 317340240 is about 682.0900515473.

Adding to 317340240 its reverse (42043713), we get a palindrome (359383953).

The spelling of 317340240 in words is "three hundred seventeen million, three hundred forty thousand, two hundred forty".