204144443220 has 192 divisors, whose sum is σ = 657635328000. Its totient is φ = 46973675520.

The previous prime is 204144443179. The next prime is 204144443227. The reversal of 204144443220 is 22344441402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204144443227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 430881 + ... + 770679.

It is an arithmetic number, because the mean of its divisors is an integer number (3425184000).

Almost surely, 2^204144443220 is an apocalyptic number.

204144443220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204144443220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328817664000).

204144443220 is an abundant number, since it is smaller than the sum of its proper divisors (453490884780).

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

204144443220 is a wasteful number, since it uses less digits than its factorization.

204144443220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339878 (or 339876 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 204144443220 its reverse (22344441402), we get a palindrome (226488884622).

The spelling of 204144443220 in words is "two hundred four billion, one hundred forty-four million, four hundred forty-three thousand, two hundred twenty".