199393944 has 64 divisors (see below), whose sum is σ = 505945440. Its totient is φ = 65479680.

The previous prime is 199393919. The next prime is 199393949. The reversal of 199393944 is 449393991.

199393944 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199393949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855652 + ... + 855884.

Almost surely, 2^199393944 is an apocalyptic number.

It is an amenable number.

199393944 is an abundant number, since it is smaller than the sum of its proper divisors (306551496).

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

199393944 is a wasteful number, since it uses less digits than its factorization.

199393944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 616 counting only the distinct ones).

The product of its digits is 944784, while the sum is 51.

The square root of 199393944 is about 14120.6920510292. The cubic root of 199393944 is about 584.2122438029.

The spelling of 199393944 in words is "one hundred ninety-nine million, three hundred ninety-three thousand, nine hundred forty-four".