204203220 has 48 divisors (see below), whose sum is σ = 615753600. Its totient is φ = 50265216.

The previous prime is 204203213. The next prime is 204203227. The reversal of 204203220 is 22302402.

204203220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (204203213) and next prime (204203227).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 204203220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204203227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130120 + ... + 131679.

It is an arithmetic number, because the mean of its divisors is an integer number (12828200).

Almost surely, 2^204203220 is an apocalyptic number.

204203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204203220 is an abundant number, since it is smaller than the sum of its proper divisors (411550380).

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

204203220 is a wasteful number, since it uses less digits than its factorization.

204203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261824 (or 261822 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 204203220 is about 14289.9692092041. The cubic root of 204203220 is about 588.8719420515.

Adding to 204203220 its reverse (22302402), we get a palindrome (226505622).

The spelling of 204203220 in words is "two hundred four million, two hundred three thousand, two hundred twenty".