204000442220 has 48 divisors (see below), whose sum is σ = 451652392800. Its totient is φ = 77184737280.

The previous prime is 204000442183. The next prime is 204000442231. The reversal of 204000442220 is 22244000402.

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 = 204000442192 and 204000442201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175175 + ... + 662334.

It is an arithmetic number, because the mean of its divisors is an integer number (9409424850).

Almost surely, 2^204000442220 is an apocalyptic number.

204000442220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204000442220 is an abundant number, since it is smaller than the sum of its proper divisors (247651950580).

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

204000442220 is a wasteful number, since it uses less digits than its factorization.

204000442220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 838178 (or 838176 counting only the distinct ones).

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

Adding to 204000442220 its reverse (22244000402), we get a palindrome (226244442622).

The spelling of 204000442220 in words is "two hundred four billion, four hundred forty-two thousand, two hundred twenty".