204404242044 has 12 divisors (see below), whose sum is σ = 476943231464. Its totient is φ = 68134747344.

The previous prime is 204404242043. The next prime is 204404242087. The reversal of 204404242044 is 440242404402.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204404242043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8516843407 + ... + 8516843430.

Almost surely, 2^204404242044 is an apocalyptic number.

It is an amenable number.

204404242044 is an abundant number, since it is smaller than the sum of its proper divisors (272538989420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204404242044 is a wasteful number, since it uses less digits than its factorization.

204404242044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17033686844 (or 17033686842 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 204404242044 its reverse (440242404402), we get a palindrome (644646646446).

The spelling of 204404242044 in words is "two hundred four billion, four hundred four million, two hundred forty-two thousand, forty-four".