520274432 has 40 divisors (see below), whose sum is σ = 1049929452. Its totient is φ = 257536000.

The previous prime is 520274411. The next prime is 520274441. The reversal of 520274432 is 234472025.

It can be written as a sum of positive squares in 2 ways, for example, as 465869056 + 54405376 = 21584^2 + 7376^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520274395 and 520274404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46682 + ... + 56742.

Almost surely, 2^520274432 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 520274432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524964726).

520274432 is an abundant number, since it is smaller than the sum of its proper divisors (529655020).

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

520274432 is a wasteful number, since it uses less digits than its factorization.

520274432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10180 (or 10164 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 520274432 is about 22809.5250279351. The cubic root of 520274432 is about 804.2865904047.

The spelling of 520274432 in words is "five hundred twenty million, two hundred seventy-four thousand, four hundred thirty-two".