220044401 has 8 divisors (see below), whose sum is σ = 222886440. Its totient is φ = 217210752.

The previous prime is 220044389. The next prime is 220044437. The reversal of 220044401 is 104440022.

It can be written as a sum of positive squares in 4 ways, for example, as 132135025 + 87909376 = 11495^2 + 9376^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220044401 - 2⁶ = 220044337 is a prime.

It is a super-2 number, since 2×220044401² = 96839076822897602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220044401.

It is not an unprimeable number, because it can be changed into a prime (220044001) 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, 63551 + ... + 66923.

It is an arithmetic number, because the mean of its divisors is an integer number (27860805).

Almost surely, 2^220044401 is an apocalyptic number.

It is an amenable number.

220044401 is a deficient number, since it is larger than the sum of its proper divisors (2842039).

220044401 is an equidigital number, since it uses as much as digits as its factorization.

220044401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4195.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 220044401 is about 14833.8936560837. The cubic root of 220044401 is about 603.7216831348.

Adding to 220044401 its reverse (104440022), we get a palindrome (324484423).

The spelling of 220044401 in words is "two hundred twenty million, forty-four thousand, four hundred one".