199830844 has 12 divisors (see below), whose sum is σ = 349941424. Its totient is φ = 99847584.

The previous prime is 199830797. The next prime is 199830853. The reversal of 199830844 is 448038991.

It is a junction number, because it is equal to n+sod(n) for n = 199830794 and 199830803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10017 + ... + 22360.

Almost surely, 2^199830844 is an apocalyptic number.

It is an amenable number.

199830844 is a deficient number, since it is larger than the sum of its proper divisors (150110580).

199830844 is a wasteful number, since it uses less digits than its factorization.

199830844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33924 (or 33922 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 199830844 is about 14136.1537909008. The cubic root of 199830844 is about 584.6386294241.

The spelling of 199830844 in words is "one hundred ninety-nine million, eight hundred thirty thousand, eight hundred forty-four".