522424 has 32 divisors (see below), whose sum is σ = 1180800. Its totient is φ = 211680.

The previous prime is 522413. The next prime is 522439. The reversal of 522424 is 424225.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 819 + ... + 1309.

It is an arithmetic number, because the mean of its divisors is an integer number (36900).

2⁵²²⁴²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 522424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590400).

522424 is an abundant number, since it is smaller than the sum of its proper divisors (658376).

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

522424 is a wasteful number, since it uses less digits than its factorization.

522424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 519 counting only the distinct ones).

The product of its digits is 640, while the sum is 19.

The square root of 522424 is about 722.7890425290. The cubic root of 522424 is about 80.5392733023.

Adding to 522424 its reverse (424225), we get a palindrome (946649).

It can be divided in two parts, 522 and 424, that added together give a triangular number (946 = T₄₃).

The spelling of 522424 in words is "five hundred twenty-two thousand, four hundred twenty-four".