520404332 has 48 divisors (see below), whose sum is σ = 1052708160. Its totient is φ = 220499712.

The previous prime is 520404329. The next prime is 520404341. The reversal of 520404332 is 233404025.

It is a junction number, because it is equal to n+sod(n) for n = 520404298 and 520404307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1775978 + ... + 1776270.

It is an arithmetic number, because the mean of its divisors is an integer number (21931420).

Almost surely, 2^520404332 is an apocalyptic number.

It is an amenable number.

520404332 is an abundant number, since it is smaller than the sum of its proper divisors (532303828).

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

520404332 is a wasteful number, since it uses less digits than its factorization.

520404332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 520404332 is about 22812.3723448483. The cubic root of 520404332 is about 804.3535218340.

Adding to 520404332 its reverse (233404025), we get a palindrome (753808357).

The spelling of 520404332 in words is "five hundred twenty million, four hundred four thousand, three hundred thirty-two".