522422 has 16 divisors (see below), whose sum is σ = 840672. Its totient is φ = 242880.

The previous prime is 522413. The next prime is 522439. The reversal of 522422 is 224225.

It is a self number, because there is not a number n which added to its sum of digits gives 522422.

It is a congruent number.

It is an unprimeable number.

522422 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 1748 + ... + 2024.

It is an arithmetic number, because the mean of its divisors is an integer number (52542).

2⁵²²⁴²² is an apocalyptic number.

522422 is a deficient number, since it is larger than the sum of its proper divisors (318250).

522422 is a wasteful number, since it uses less digits than its factorization.

522422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343.

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

The square root of 522422 is about 722.7876589981. The cubic root of 522422 is about 80.5391705258.

Adding to 522422 its reverse (224225), we get a palindrome (746647).

The spelling of 522422 in words is "five hundred twenty-two thousand, four hundred twenty-two".