522242 has 18 divisors (see below), whose sum is σ = 923913. Its totient is φ = 220752.

The previous prime is 522239. The next prime is 522251. The reversal of 522242 is 242225.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 2401 = 721^2 + 49^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=511.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 522242.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 522242.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7118 + ... + 7190.

522242 is a Friedman number, since it can be written as 2*((4^5-2)/2)^2, using all its digits and the basic arithmetic operations.

2⁵²²²⁴² is an apocalyptic number.

522242 is a deficient number, since it is larger than the sum of its proper divisors (401671).

522242 is an equidigital number, since it uses as much as digits as its factorization.

522242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 82 counting only the distinct ones).

The product of its digits is 320, while the sum is 17.

The square root of 522242 is about 722.6631303727. The cubic root of 522242 is about 80.5299195652.

Subtracting from 522242 its sum of digits (17), we obtain a palindrome (522225).

Adding to 522242 its reverse (242225), we get a palindrome (764467).

The spelling of 522242 in words is "five hundred twenty-two thousand, two hundred forty-two".