220044641 has 2 divisors, whose sum is σ = 220044642. Its totient is φ = 220044640.

The previous prime is 220044589. The next prime is 220044653. The reversal of 220044641 is 146440022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189750625 + 30294016 = 13775^2 + 5504^2 .

It is a cyclic number.

It is not a de Polignac number, because 220044641 - 2⁶ = 220044577 is a prime.

It is not a weakly prime, because it can be changed into another prime (220044241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110022320 + 110022321.

It is an arithmetic number, because the mean of its divisors is an integer number (110022321).

Almost surely, 2^220044641 is an apocalyptic number.

It is an amenable number.

220044641 is a deficient number, since it is larger than the sum of its proper divisors (1).

220044641 is an equidigital number, since it uses as much as digits as its factorization.

220044641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 220044641 is about 14833.9017456635. The cubic root of 220044641 is about 603.7219026256.

Adding to 220044641 its reverse (146440022), we get a palindrome (366484663).

The spelling of 220044641 in words is "two hundred twenty million, forty-four thousand, six hundred forty-one".