220441164 has 24 divisors (see below), whose sum is σ = 519084720. Its totient is φ = 72805824.

The previous prime is 220441147. The next prime is 220441171. The reversal of 220441164 is 461144022.

It is a happy number.

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, 82959 + ... + 85574.

It is an arithmetic number, because the mean of its divisors is an integer number (21628530).

Almost surely, 2^220441164 is an apocalyptic number.

It is an amenable number.

220441164 is an abundant number, since it is smaller than the sum of its proper divisors (298643556).

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

220441164 is a wasteful number, since it uses less digits than its factorization.

220441164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168649 (or 168647 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 220441164 is about 14847.2611615745. The cubic root of 220441164 is about 604.0843229787.

Adding to 220441164 its reverse (461144022), we get a palindrome (681585186).

The spelling of 220441164 in words is "two hundred twenty million, four hundred forty-one thousand, one hundred sixty-four".