195728 has 20 divisors (see below), whose sum is σ = 408828. Its totient is φ = 90240.

The previous prime is 195709. The next prime is 195731. The reversal of 195728 is 827591.

195728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 71824 + 123904 = 268^2 + 352^2 .

It is a junction number, because it is equal to n+sod(n) for n = 195694 and 195703.

It is an unprimeable number.

195728 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263 + ... + 678.

2¹⁹⁵⁷²⁸ is an apocalyptic number.

It is an amenable number.

195728 is an abundant number, since it is smaller than the sum of its proper divisors (213100).

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

195728 is a wasteful number, since it uses less digits than its factorization.

195728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962 (or 956 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 195728 is about 442.4115730855. The cubic root of 195728 is about 58.0609743227.

The spelling of 195728 in words is "one hundred ninety-five thousand, seven hundred twenty-eight".