522438 has 24 divisors (see below), whose sum is σ = 1216152. Its totient is φ = 149184.

The previous prime is 522413. The next prime is 522439. The reversal of 522438 is 834225.

It is a d-powerful number, because it can be written as 5⁸ + 2¹⁶ + 4 + 2¹⁶ + 3⁶ + 8 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 595 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (50673).

2⁵²²⁴³⁸ is an apocalyptic number.

522438 is an abundant number, since it is smaller than the sum of its proper divisors (693714).

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

522438 is a wasteful number, since it uses less digits than its factorization.

522438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1789 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 522438 is about 722.7987271710. The cubic root of 522438 is about 80.5399927306.

The spelling of 522438 in words is "five hundred twenty-two thousand, four hundred thirty-eight".