500401220 has 24 divisors (see below), whose sum is σ = 1146374208. Its totient is φ = 181964000.

The previous prime is 500401219. The next prime is 500401259. The reversal of 500401220 is 22104005.

It is a junction number, because it is equal to n+sod(n) for n = 500401195 and 500401204.

It is an unprimeable number.

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, 1137056 + ... + 1137495.

It is an arithmetic number, because the mean of its divisors is an integer number (47765592).

Almost surely, 2^500401220 is an apocalyptic number.

It is an amenable number.

500401220 is an abundant number, since it is smaller than the sum of its proper divisors (645972988).

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

500401220 is a wasteful number, since it uses less digits than its factorization.

500401220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274571 (or 2274569 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 500401220 is about 22369.6495278759. The cubic root of 500401220 is about 793.9127682404.

Adding to 500401220 its reverse (22104005), we get a palindrome (522505225).

The spelling of 500401220 in words is "five hundred million, four hundred one thousand, two hundred twenty".