200728 has 16 divisors (see below), whose sum is σ = 410760. Its totient is φ = 91200.

The previous prime is 200723. The next prime is 200731. The reversal of 200728 is 827002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200723) by changing a digit.

200728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053 + ... + 1228.

2²⁰⁰⁷²⁸ is an apocalyptic number.

It is an amenable number.

200728 is an abundant number, since it is smaller than the sum of its proper divisors (210032).

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

200728 is a wasteful number, since it uses less digits than its factorization.

200728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 200728 is about 448.0267849136. The cubic root of 200728 is about 58.5512250082.

The spelling of 200728 in words is "two hundred thousand, seven hundred twenty-eight".