204303220 has 24 divisors (see below), whose sum is σ = 468040608. Its totient is φ = 74292000.

The previous prime is 204303179. The next prime is 204303223. The reversal of 204303220 is 22303402.

It is a junction number, because it is equal to n+sod(n) for n = 204303194 and 204303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204303223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 464106 + ... + 464545.

It is an arithmetic number, because the mean of its divisors is an integer number (19501692).

Almost surely, 2^204303220 is an apocalyptic number.

204303220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204303220 is an abundant number, since it is smaller than the sum of its proper divisors (263737388).

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

204303220 is a wasteful number, since it uses less digits than its factorization.

204303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928671 (or 928669 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 204303220 is about 14293.4677387959. The cubic root of 204303220 is about 588.9680515126.

Adding to 204303220 its reverse (22303402), we get a palindrome (226606622).

The spelling of 204303220 in words is "two hundred four million, three hundred three thousand, two hundred twenty".