520208 has 40 divisors (see below), whose sum is σ = 1130136. Its totient is φ = 230400.

The previous prime is 520193. The next prime is 520213. The reversal of 520208 is 802025.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 73984 + 446224 = 272^2 + 668^2 .

It is a congruent number.

It is an unprimeable number.

520208 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8498 + ... + 8558.

2⁵²⁰²⁰⁸ 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 520208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565068).

520208 is an abundant number, since it is smaller than the sum of its proper divisors (609928).

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

520208 is a wasteful number, since it uses less digits than its factorization.

520208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 520208 is about 721.2544627245. The cubic root of 520208 is about 80.4252356779.

The spelling of 520208 in words is "five hundred twenty thousand, two hundred eight".