204404201 has 4 divisors (see below), whose sum is σ = 204450900. Its totient is φ = 204357504.

The previous prime is 204404191. The next prime is 204404219. The reversal of 204404201 is 102404402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102414400 + 101989801 = 10120^2 + 10099^2 .

It is a cyclic number.

It is not a de Polignac number, because 204404201 - 2¹⁴ = 204387817 is a prime.

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 204404201.

It is not an unprimeable number, because it can be changed into a prime (204404251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16016 + ... + 25793.

It is an arithmetic number, because the mean of its divisors is an integer number (51112725).

Almost surely, 2^204404201 is an apocalyptic number.

It is an amenable number.

204404201 is a deficient number, since it is larger than the sum of its proper divisors (46699).

204404201 is an equidigital number, since it uses as much as digits as its factorization.

204404201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46698.

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

The square root of 204404201 is about 14296.9997202210. Note that the first 3 decimals coincide. The cubic root of 204404201 is about 589.0650719882.

Adding to 204404201 its reverse (102404402), we get a palindrome (306808603).

The spelling of 204404201 in words is "two hundred four million, four hundred four thousand, two hundred one".