204004401 has 8 divisors (see below), whose sum is σ = 272107584. Its totient is φ = 135952080.

The previous prime is 204004379. The next prime is 204004429. The reversal of 204004401 is 104400402.

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

It is not a de Polignac number, because 204004401 - 2⁹ = 204003889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204004001) 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, 2085 + ... + 20306.

It is an arithmetic number, because the mean of its divisors is an integer number (34013448).

Almost surely, 2^204004401 is an apocalyptic number.

It is an amenable number.

204004401 is a deficient number, since it is larger than the sum of its proper divisors (68103183).

204004401 is a wasteful number, since it uses less digits than its factorization.

204004401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25431.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 204004401 is about 14283.0109220710. The cubic root of 204004401 is about 588.6807649347.

Adding to 204004401 its reverse (104400402), we get a palindrome (308404803).

The spelling of 204004401 in words is "two hundred four million, four thousand, four hundred one".