520233984 has 132 divisors (see below), whose sum is σ = 1581757840. Its totient is φ = 164229120.

The previous prime is 520233943. The next prime is 520233991. The reversal of 520233984 is 489332025.

520233984 is a `hidden beast` number, since 520 + 23 + 39 + 84 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 173619 + ... + 176589.

Almost surely, 2^520233984 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 520233984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790878920).

520233984 is an abundant number, since it is smaller than the sum of its proper divisors (1061523856).

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

520233984 is a wasteful number, since it uses less digits than its factorization.

520233984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3016 (or 2995 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 520233984 is about 22808.6383635674. The cubic root of 520233984 is about 804.2657471567.

The spelling of 520233984 in words is "five hundred twenty million, two hundred thirty-three thousand, nine hundred eighty-four".