204000220 has 12 divisors (see below), whose sum is σ = 428400504. Its totient is φ = 81600080.

The previous prime is 204000217. The next prime is 204000241. The reversal of 204000220 is 22000402.

It is a happy number.

204000220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 204000197 and 204000206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5099986 + ... + 5100025.

It is an arithmetic number, because the mean of its divisors is an integer number (35700042).

Almost surely, 2^204000220 is an apocalyptic number.

204000220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204000220 is an abundant number, since it is smaller than the sum of its proper divisors (224400284).

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

204000220 is a wasteful number, since it uses less digits than its factorization.

204000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10200020 (or 10200018 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 204000220 is about 14282.8645586241. The cubic root of 204000220 is about 588.6767433040.

Adding to 204000220 its reverse (22000402), we get a palindrome (226000622).

The spelling of 204000220 in words is "two hundred four million, two hundred twenty", and thus it is an aban number.