204228500 has 192 divisors, whose sum is σ = 553512960. Its totient is φ = 64310400.

The previous prime is 204228491. The next prime is 204228533. The reversal of 204228500 is 5822402.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3461471 + ... + 3461529.

It is an arithmetic number, because the mean of its divisors is an integer number (2882880).

Almost surely, 2^204228500 is an apocalyptic number.

204228500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204228500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276756480).

204228500 is an abundant number, since it is smaller than the sum of its proper divisors (349284460).

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

204228500 is a wasteful number, since it uses less digits than its factorization.

204228500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 204228500 is about 14290.8537183753. The cubic root of 204228500 is about 588.8962414862.

The spelling of 204228500 in words is "two hundred four million, two hundred twenty-eight thousand, five hundred".