520338 has 32 divisors (see below), whose sum is σ = 1282176. Its totient is φ = 137088.

The previous prime is 520313. The next prime is 520339. The reversal of 520338 is 833025.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (520339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70 + ... + 1022.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2⁵²⁰³³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641088).

520338 is an abundant number, since it is smaller than the sum of its proper divisors (761838).

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

520338 is a wasteful number, since it uses less digits than its factorization.

520338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 520338 is about 721.3445778544. The cubic root of 520338 is about 80.4319345431.

It can be divided in two parts, 520 and 338, that added together give a palindrome (858).

The spelling of 520338 in words is "five hundred twenty thousand, three hundred thirty-eight".