204004423 has 8 divisors (see below), whose sum is σ = 233822592. Its totient is φ = 174354936.

The previous prime is 204004379. The next prime is 204004429. The reversal of 204004423 is 324400402.

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

It is a de Polignac number, because none of the positive numbers 2^k-204004423 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 204004423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204004429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39565 + ... + 44422.

It is an arithmetic number, because the mean of its divisors is an integer number (29227824).

Almost surely, 2^204004423 is an apocalyptic number.

204004423 is a deficient number, since it is larger than the sum of its proper divisors (29818169).

204004423 is an equidigital number, since it uses as much as digits as its factorization.

204004423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84341.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 204004423 is about 14283.0116922167. The cubic root of 204004423 is about 588.6807860960.

Adding to 204004423 its reverse (324400402), we get a palindrome (528404825).

The spelling of 204004423 in words is "two hundred four million, four thousand, four hundred twenty-three".