204344401 has 4 divisors (see below), whose sum is σ = 204704100. Its totient is φ = 203984704.

The previous prime is 204344381. The next prime is 204344429. The reversal of 204344401 is 104443402.

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 26255376 + 178089025 = 5124^2 + 13345^2 .

It is a cyclic number.

It is not a de Polignac number, because 204344401 - 2¹⁵ = 204311633 is a prime.

It is a super-3 number, since 3×204344401³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204344201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178996 + ... + 180133.

It is an arithmetic number, because the mean of its divisors is an integer number (51176025).

Almost surely, 2^204344401 is an apocalyptic number.

It is an amenable number.

204344401 is a deficient number, since it is larger than the sum of its proper divisors (359699).

204344401 is an equidigital number, since it uses as much as digits as its factorization.

204344401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359698.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 204344401 is about 14294.9082193626. The cubic root of 204344401 is about 589.0076212330.

Adding to 204344401 its reverse (104443402), we get a palindrome (308787803).

Subtracting from 204344401 its reverse (104443402), we obtain a palindrome (99900999).

The spelling of 204344401 in words is "two hundred four million, three hundred forty-four thousand, four hundred one".