500044221 has 12 divisors (see below), whose sum is σ = 722961148. Its totient is φ = 333051264.

The previous prime is 500044213. The next prime is 500044243. The reversal of 500044221 is 122440005.

It can be written as a sum of positive squares in 2 ways, for example, as 402804900 + 97239321 = 20070^2 + 9861^2 .

It is not a de Polignac number, because 500044221 - 2³ = 500044213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 500044194 and 500044203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500044921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15580 + ... + 35253.

Almost surely, 2^500044221 is an apocalyptic number.

It is an amenable number.

500044221 is a deficient number, since it is larger than the sum of its proper divisors (222916927).

500044221 is a wasteful number, since it uses less digits than its factorization.

500044221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51932 (or 51929 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 500044221 is about 22361.6685647561. The cubic root of 500044221 is about 793.7239241150.

Adding to 500044221 its reverse (122440005), we get a palindrome (622484226).

The spelling of 500044221 in words is "five hundred million, forty-four thousand, two hundred twenty-one".