204517228 has 12 divisors (see below), whose sum is σ = 358380792. Its totient is φ = 102122720.

The previous prime is 204517217. The next prime is 204517253. The reversal of 204517228 is 822715402.

It is a happy number.

204517228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 204517228.

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, 30550 + ... + 36637.

It is an arithmetic number, because the mean of its divisors is an integer number (29865066).

Almost surely, 2^204517228 is an apocalyptic number.

It is an amenable number.

204517228 is a deficient number, since it is larger than the sum of its proper divisors (153863564).

204517228 is a wasteful number, since it uses less digits than its factorization.

204517228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67952 (or 67950 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 204517228 is about 14300.9519962833. The cubic root of 204517228 is about 589.1736281224.

The spelling of 204517228 in words is "two hundred four million, five hundred seventeen thousand, two hundred twenty-eight".