199764068 has 48 divisors (see below), whose sum is σ = 413952000. Its totient is φ = 82573344.

The previous prime is 199764067. The next prime is 199764077. The reversal of 199764068 is 860467991.

199764068 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (199764067) 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, 98933 + ... + 100931.

It is an arithmetic number, because the mean of its divisors is an integer number (8624000).

Almost surely, 2^199764068 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199764068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206976000).

199764068 is an abundant number, since it is smaller than the sum of its proper divisors (214187932).

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

199764068 is a wasteful number, since it uses less digits than its factorization.

199764068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136 (or 2134 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 199764068 is about 14133.7917064035. The cubic root of 199764068 is about 584.5735007088.

The spelling of 199764068 in words is "one hundred ninety-nine million, seven hundred sixty-four thousand, sixty-eight".