220444616 has 32 divisors (see below), whose sum is σ = 473088000. Its totient is φ = 94334976.

The previous prime is 220444613. The next prime is 220444657. The reversal of 220444616 is 616444022.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (220444613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40505 + ... + 45623.

It is an arithmetic number, because the mean of its divisors is an integer number (14784000).

Almost surely, 2^220444616 is an apocalyptic number.

It is an amenable number.

220444616 is an abundant number, since it is smaller than the sum of its proper divisors (252643384).

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

220444616 is a wasteful number, since it uses less digits than its factorization.

220444616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5901 (or 5897 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 220444616 is about 14847.3774115161. The cubic root of 220444616 is about 604.0874761832.

Adding to 220444616 its reverse (616444022), we get a palindrome (836888638).

The spelling of 220444616 in words is "two hundred twenty million, four hundred forty-four thousand, six hundred sixteen".