199684330 has 16 divisors (see below), whose sum is σ = 371026944. Its totient is φ = 77297040.

The previous prime is 199684313. The next prime is 199684339. The reversal of 199684330 is 33486991.

199684330 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 (199684339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321762 + ... + 322381.

It is an arithmetic number, because the mean of its divisors is an integer number (23189184).

Almost surely, 2^199684330 is an apocalyptic number.

199684330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199684330 is a deficient number, since it is larger than the sum of its proper divisors (171342614).

199684330 is a wasteful number, since it uses less digits than its factorization.

199684330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644181.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 199684330 is about 14130.9705965302. The cubic root of 199684330 is about 584.4957107345.

The spelling of 199684330 in words is "one hundred ninety-nine million, six hundred eighty-four thousand, three hundred thirty".