520427784 has 32 divisors (see below), whose sum is σ = 1369548000. Its totient is φ = 164345472.

The previous prime is 520427779. The next prime is 520427813. The reversal of 520427784 is 487724025.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 570189 + ... + 571100.

It is an arithmetic number, because the mean of its divisors is an integer number (42798375).

Almost surely, 2^520427784 is an apocalyptic number.

It is an amenable number.

520427784 is an abundant number, since it is smaller than the sum of its proper divisors (849120216).

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

520427784 is a wasteful number, since it uses less digits than its factorization.

520427784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141317 (or 1141313 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 39.

The square root of 520427784 is about 22812.8863583721. The cubic root of 520427784 is about 804.3656043721.

The spelling of 520427784 in words is "five hundred twenty million, four hundred twenty-seven thousand, seven hundred eighty-four".