520430224 has 10 divisors (see below), whose sum is σ = 1008333590. Its totient is φ = 260215104.

The previous prime is 520430221. The next prime is 520430237. The reversal of 520430224 is 422034025.

It can be written as a sum of positive squares in only one way, i.e., 516743824 + 3686400 = 22732^2 + 1920^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520430195 and 520430204.

It is not an unprimeable number, because it can be changed into a prime (520430221) by changing a digit.

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 as a sum of consecutive naturals, namely, 16263429 + ... + 16263460.

It is an arithmetic number, because the mean of its divisors is an integer number (100833359).

Almost surely, 2^520430224 is an apocalyptic number.

It is an amenable number.

520430224 is a deficient number, since it is larger than the sum of its proper divisors (487903366).

520430224 is a wasteful number, since it uses less digits than its factorization.

520430224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32526897 (or 32526891 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 520430224 is about 22812.9398368557. The cubic root of 520430224 is about 804.3668614463.

Adding to 520430224 its reverse (422034025), we get a palindrome (942464249).

The spelling of 520430224 in words is "five hundred twenty million, four hundred thirty thousand, two hundred twenty-four".