520023384 has 48 divisors (see below), whose sum is σ = 1427704200. Its totient is φ = 170964864.

The previous prime is 520023373. The next prime is 520023409. The reversal of 520023384 is 483320025.

It is a super-2 number, since 2×520023384² = 540848639813622912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44214 + ... + 54725.

Almost surely, 2^520023384 is an apocalyptic number.

It is an amenable number.

520023384 is an abundant number, since it is smaller than the sum of its proper divisors (907680816).

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

520023384 is a wasteful number, since it uses less digits than its factorization.

520023384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99024 (or 99017 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 520023384 is about 22804.0212243367. The cubic root of 520023384 is about 804.1572054668.

The spelling of 520023384 in words is "five hundred twenty million, twenty-three thousand, three hundred eighty-four".