520844472 has 128 divisors (see below), whose sum is σ = 1482624000. Its totient is φ = 169378560.

The previous prime is 520844431. The next prime is 520844477. The reversal of 520844472 is 274448025.

520844472 is a `hidden beast` number, since 5 + 208 + 4 + 447 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520844477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2235268 + ... + 2235500.

It is an arithmetic number, because the mean of its divisors is an integer number (11583000).

Almost surely, 2^520844472 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 520844472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741312000).

520844472 is an abundant number, since it is smaller than the sum of its proper divisors (961779528).

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

520844472 is a wasteful number, since it uses less digits than its factorization.

520844472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 36.

The square root of 520844472 is about 22822.0172640369. The cubic root of 520844472 is about 804.5802227382.

The spelling of 520844472 in words is "five hundred twenty million, eight hundred forty-four thousand, four hundred seventy-two".