220200644 has 12 divisors (see below), whose sum is σ = 386232000. Its totient is φ = 109848648.

The previous prime is 220200641. The next prime is 220200647. The reversal of 220200644 is 446002022.

It is an interprime number because it is at equal distance from previous prime (220200641) and next prime (220200647).

It is not an unprimeable number, because it can be changed into a prime (220200641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60944 + ... + 64455.

It is an arithmetic number, because the mean of its divisors is an integer number (32186000).

Almost surely, 2^220200644 is an apocalyptic number.

It is an amenable number.

220200644 is a deficient number, since it is larger than the sum of its proper divisors (166031356).

220200644 is a wasteful number, since it uses less digits than its factorization.

220200644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125842 (or 125840 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 220200644 is about 14839.1591405982. The cubic root of 220200644 is about 603.8645406211.

Adding to 220200644 its reverse (446002022), we get a palindrome (666202666).

The spelling of 220200644 in words is "two hundred twenty million, two hundred thousand, six hundred forty-four".