522402 has 16 divisors (see below), whose sum is σ = 1058400. Its totient is φ = 171872.

The previous prime is 522391. The next prime is 522409. The reversal of 522402 is 204225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522409) by changing a digit.

522402 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27 + ... + 1022.

It is an arithmetic number, because the mean of its divisors is an integer number (66150).

2⁵²²⁴⁰² is an apocalyptic number.

522402 is an abundant number, since it is smaller than the sum of its proper divisors (535998).

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

522402 is a wasteful number, since it uses less digits than its factorization.

522402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137.

The product of its (nonzero) digits is 160, while the sum is 15.

The square root of 522402 is about 722.7738235437. The cubic root of 522402 is about 80.5381427462.

Adding to 522402 its reverse (204225), we get a palindrome (726627).

The spelling of 522402 in words is "five hundred twenty-two thousand, four hundred two".