204444040020 has 96 divisors (see below), whose sum is σ = 624575992320. Its totient is φ = 49554860160.

The previous prime is 204444040013. The next prime is 204444040049. The reversal of 204444040020 is 20040444402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5421591 + ... + 5459169.

It is an arithmetic number, because the mean of its divisors is an integer number (6505999920).

Almost surely, 2^204444040020 is an apocalyptic number.

204444040020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204444040020 is an abundant number, since it is smaller than the sum of its proper divisors (420131952300).

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

204444040020 is a wasteful number, since it uses less digits than its factorization.

204444040020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45845 (or 45843 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 204444040020 its reverse (20040444402), we get a palindrome (224484484422).

The spelling of 204444040020 in words is "two hundred four billion, four hundred forty-four million, forty thousand, twenty".