522920 has 32 divisors (see below), whose sum is σ = 1247400. Its totient is φ = 196608.

The previous prime is 522919. The next prime is 522943. The reversal of 522920 is 29225.

It can be written as a sum of positive squares in 4 ways, for example, as 454276 + 68644 = 674^2 + 262^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 522892 and 522901.

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, 296 + ... + 1064.

2⁵²²⁹²⁰ 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 522920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623700).

522920 is an abundant number, since it is smaller than the sum of its proper divisors (724480).

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

522920 is a wasteful number, since it uses less digits than its factorization.

522920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 522920 is about 723.1320764563. The cubic root of 522920 is about 80.5647537830.

The spelling of 522920 in words is "five hundred twenty-two thousand, nine hundred twenty".