520331874 has 16 divisors (see below), whose sum is σ = 1041938112. Its totient is φ = 173231568.

The previous prime is 520331873. The next prime is 520331881. The reversal of 520331874 is 478133025.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (520331873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47749 + ... + 57624.

It is an arithmetic number, because the mean of its divisors is an integer number (65121132).

Almost surely, 2^520331874 is an apocalyptic number.

520331874 is an abundant number, since it is smaller than the sum of its proper divisors (521606238).

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

520331874 is a wasteful number, since it uses less digits than its factorization.

520331874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106201.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 520331874 is about 22810.7841601292. The cubic root of 520331874 is about 804.3161889699.

Adding to 520331874 its reverse (478133025), we get a palindrome (998464899).

The spelling of 520331874 in words is "five hundred twenty million, three hundred thirty-one thousand, eight hundred seventy-four".