200817228 has 48 divisors (see below), whose sum is σ = 486420480. Its totient is φ = 64405824.

The previous prime is 200817223. The next prime is 200817263. The reversal of 200817228 is 822718002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 200817195 and 200817204.

It is not an unprimeable number, because it can be changed into a prime (200817223) 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, 119925 + ... + 121587.

It is an arithmetic number, because the mean of its divisors is an integer number (10133760).

Almost surely, 2^200817228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200817228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243210240).

200817228 is an abundant number, since it is smaller than the sum of its proper divisors (285603252).

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

200817228 is a wasteful number, since it uses less digits than its factorization.

200817228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 200817228 is about 14170.9995413168. Note that the first 3 decimals coincide. The cubic root of 200817228 is about 585.5989949108.

The spelling of 200817228 in words is "two hundred million, eight hundred seventeen thousand, two hundred twenty-eight".