317530242 has 48 divisors (see below), whose sum is σ = 728133120. Its totient is φ = 99727200.

The previous prime is 317530237. The next prime is 317530307. The reversal of 317530242 is 242035713.

317530242 is a `hidden beast` number, since 317 + 5 + 302 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62892 + ... + 67752.

It is an arithmetic number, because the mean of its divisors is an integer number (15169440).

Almost surely, 2^317530242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317530242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (364066560).

317530242 is an abundant number, since it is smaller than the sum of its proper divisors (410602878).

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

317530242 is a wasteful number, since it uses less digits than its factorization.

317530242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079 (or 5076 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 317530242 is about 17819.3782719824. The cubic root of 317530242 is about 682.2261542759.

Adding to 317530242 its reverse (242035713), we get a palindrome (559565955).

The spelling of 317530242 in words is "three hundred seventeen million, five hundred thirty thousand, two hundred forty-two".