204404404444 has 24 divisors (see below), whose sum is σ = 362454618960. Its totient is φ = 100848916224.

The previous prime is 204404404441. The next prime is 204404404447. The reversal of 204404404444 is 444404404402.

It is an interprime number because it is at equal distance from previous prime (204404404441) and next prime (204404404447).

It is a super-2 number, since 2×204404404444² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204404404441) 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 7 ways as a sum of consecutive naturals, for example, 96109 + ... + 646564.

It is an arithmetic number, because the mean of its divisors is an integer number (15102275790).

Almost surely, 2^204404404444 is an apocalyptic number.

It is an amenable number.

204404404444 is a deficient number, since it is larger than the sum of its proper divisors (158050214516).

204404404444 is a wasteful number, since it uses less digits than its factorization.

204404404444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743589 (or 743587 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 204404404444 its reverse (444404404402), we get a palindrome (648808808846).

The spelling of 204404404444 in words is "two hundred four billion, four hundred four million, four hundred four thousand, four hundred forty-four".