520221230 has 16 divisors (see below), whose sum is σ = 966605184. Its totient is φ = 201375840.

The previous prime is 520221217. The next prime is 520221253. The reversal of 520221230 is 32122025.

It is a junction number, because it is equal to n+sod(n) for n = 520221199 and 520221208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838757 + ... + 839376.

It is an arithmetic number, because the mean of its divisors is an integer number (60412824).

Almost surely, 2^520221230 is an apocalyptic number.

520221230 is a deficient number, since it is larger than the sum of its proper divisors (446383954).

520221230 is a wasteful number, since it uses less digits than its factorization.

520221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678171.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 520221230 is about 22808.3587748001. The cubic root of 520221230 is about 804.2591746723.

Adding to 520221230 its reverse (32122025), we get a palindrome (552343255).

The spelling of 520221230 in words is "five hundred twenty million, two hundred twenty-one thousand, two hundred thirty".