199822728 has 64 divisors (see below), whose sum is σ = 571973760. Its totient is φ = 56987136.

The previous prime is 199822723. The next prime is 199822729. The reversal of 199822728 is 827228991.

It is not an unprimeable number, because it can be changed into a prime (199822723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166900 + ... + 168092.

It is an arithmetic number, because the mean of its divisors is an integer number (8937090).

Almost surely, 2^199822728 is an apocalyptic number.

It is an amenable number.

199822728 is an abundant number, since it is smaller than the sum of its proper divisors (372151032).

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

199822728 is a wasteful number, since it uses less digits than its factorization.

199822728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2206 (or 2202 counting only the distinct ones).

The product of its digits is 290304, while the sum is 48.

The square root of 199822728 is about 14135.8667226315. The cubic root of 199822728 is about 584.6307144109.

The spelling of 199822728 in words is "one hundred ninety-nine million, eight hundred twenty-two thousand, seven hundred twenty-eight".