522428 has 12 divisors (see below), whose sum is σ = 922152. Its totient is φ = 258960.

The previous prime is 522413. The next prime is 522439. The reversal of 522428 is 824225.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 26 + ... + 1022.

It is an arithmetic number, because the mean of its divisors is an integer number (76846).

2⁵²²⁴²⁸ is an apocalyptic number.

It is an amenable number.

522428 is a deficient number, since it is larger than the sum of its proper divisors (399724).

522428 is a wasteful number, since it uses less digits than its factorization.

522428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132 (or 1130 counting only the distinct ones).

The product of its digits is 1280, while the sum is 23.

The square root of 522428 is about 722.7918095828. The cubic root of 522428 is about 80.5394788545.

The spelling of 522428 in words is "five hundred twenty-two thousand, four hundred twenty-eight".