520392 has 16 divisors (see below), whose sum is σ = 1301040. Its totient is φ = 173456.

The previous prime is 520381. The next prime is 520393. The reversal of 520392 is 293025.

It is not an unprimeable number, because it can be changed into a prime (520393) by changing a digit.

520392 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 3 ways as a sum of consecutive naturals, for example, 10818 + ... + 10865.

It is an arithmetic number, because the mean of its divisors is an integer number (81315).

2⁵²⁰³⁹² is an apocalyptic number.

It is an amenable number.

520392 is an abundant number, since it is smaller than the sum of its proper divisors (780648).

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

520392 is a wasteful number, since it uses less digits than its factorization.

520392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21692 (or 21688 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 520392 is about 721.3820069838. The cubic root of 520392 is about 80.4347168206.

The spelling of 520392 in words is "five hundred twenty thousand, three hundred ninety-two".