204444401 has 16 divisors (see below), whose sum is σ = 244648704. Its totient is φ = 167042304.

The previous prime is 204444379. The next prime is 204444421. The reversal of 204444401 is 104444402.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204444401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204444421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48365 + ... + 52421.

It is an arithmetic number, because the mean of its divisors is an integer number (15290544).

Almost surely, 2^204444401 is an apocalyptic number.

It is an amenable number.

204444401 is a deficient number, since it is larger than the sum of its proper divisors (40204303).

204444401 is a wasteful number, since it uses less digits than its factorization.

204444401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400.

The product of its (nonzero) digits is 2048, while the sum is 23.

The square root of 204444401 is about 14298.4055404790. The cubic root of 204444401 is about 589.1036864321.

Adding to 204444401 its reverse (104444402), we get a palindrome (308888803).

Subtracting from 204444401 its reverse (104444402), we obtain a palindrome (99999999).

The spelling of 204444401 in words is "two hundred four million, four hundred forty-four thousand, four hundred one".