220441009 has 2 divisors, whose sum is σ = 220441010. Its totient is φ = 220441008.

The previous prime is 220441003. The next prime is 220441063. The reversal of 220441009 is 900144022.

220441009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198725409 + 21715600 = 14097^2 + 4660^2 .

It is a cyclic number.

It is not a de Polignac number, because 220441009 - 2¹⁹ = 219916721 is a prime.

It is not a weakly prime, because it can be changed into another prime (220441003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110220504 + 110220505.

It is an arithmetic number, because the mean of its divisors is an integer number (110220505).

Almost surely, 2^220441009 is an apocalyptic number.

It is an amenable number.

220441009 is a deficient number, since it is larger than the sum of its proper divisors (1).

220441009 is an equidigital number, since it uses as much as digits as its factorization.

220441009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 220441009 is about 14847.2559417557. The cubic root of 220441009 is about 604.0841813943.

The spelling of 220441009 in words is "two hundred twenty million, four hundred forty-one thousand, nine".