194728 has 16 divisors (see below), whose sum is σ = 370260. Its totient is φ = 96000.

The previous prime is 194723. The next prime is 194729. The reversal of 194728 is 827491.

194728 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 161604 + 33124 = 402^2 + 182^2 .

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 194728.

It is not an unprimeable number, because it can be changed into a prime (194723) by changing a digit.

194728 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, 688 + ... + 928.

2¹⁹⁴⁷²⁸ is an apocalyptic number.

It is an amenable number.

194728 is a deficient number, since it is larger than the sum of its proper divisors (175532).

194728 is a wasteful number, since it uses less digits than its factorization.

194728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348 (or 344 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 194728 is about 441.2799564902. The cubic root of 194728 is about 57.9619250701.

The spelling of 194728 in words is "one hundred ninety-four thousand, seven hundred twenty-eight".