204044002220 has 24 divisors (see below), whose sum is σ = 428560118784. Its totient is φ = 81604702976.

The previous prime is 204044002199. The next prime is 204044002237. The reversal of 204044002220 is 22200440402.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 204044002192 and 204044002201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 675884 + ... + 930003.

It is an arithmetic number, because the mean of its divisors is an integer number (17856671616).

Almost surely, 2^204044002220 is an apocalyptic number.

204044002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204044002220 is an abundant number, since it is smaller than the sum of its proper divisors (224516116564).

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

204044002220 is a wasteful number, since it uses less digits than its factorization.

204044002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1612249 (or 1612247 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 204044002220 its reverse (22200440402), we get a palindrome (226244442622).

The spelling of 204044002220 in words is "two hundred four billion, forty-four million, two thousand, two hundred twenty".