317442 has 16 divisors (see below), whose sum is σ = 640512. Its totient is φ = 104880.

The previous prime is 317437. The next prime is 317453. The reversal of 317442 is 244713.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317442.

It is an unprimeable number.

317442 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1008 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (40032).

2³¹⁷⁴⁴² is an apocalyptic number.

317442 is an abundant number, since it is smaller than the sum of its proper divisors (323070).

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

317442 is a wasteful number, since it uses less digits than its factorization.

317442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 672, while the sum is 21.

The square root of 317442 is about 563.4199144510. The cubic root of 317442 is about 68.2162951290.

It can be divided in two parts, 3 and 17442, that multiplied together give a triangular number (52326 = T₃₂₃).

The spelling of 317442 in words is "three hundred seventeen thousand, four hundred forty-two", and thus it is an iban number.