204132220 has 12 divisors (see below), whose sum is σ = 428677704. Its totient is φ = 81652880.

The previous prime is 204132217. The next prime is 204132251. The reversal of 204132220 is 22231402.

It is a junction number, because it is equal to n+sod(n) for n = 204132194 and 204132203.

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, 5103286 + ... + 5103325.

It is an arithmetic number, because the mean of its divisors is an integer number (35723142).

Almost surely, 2^204132220 is an apocalyptic number.

204132220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204132220 is an abundant number, since it is smaller than the sum of its proper divisors (224545484).

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

204132220 is a wasteful number, since it uses less digits than its factorization.

204132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10206620 (or 10206618 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 204132220 is about 14287.4847331502. The cubic root of 204132220 is about 588.8036852851.

Adding to 204132220 its reverse (22231402), we get a palindrome (226363622).

The spelling of 204132220 in words is "two hundred four million, one hundred thirty-two thousand, two hundred twenty".