199829443 has 18 divisors (see below), whose sum is σ = 224354508. Its totient is φ = 177811920.

The previous prime is 199829437. The next prime is 199829447. The reversal of 199829443 is 344928991.

It is a de Polignac number, because none of the positive numbers 2^k-199829443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199829447) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1272721 + ... + 1272877.

Almost surely, 2^199829443 is an apocalyptic number.

199829443 is a deficient number, since it is larger than the sum of its proper divisors (24525065).

199829443 is an equidigital number, since it uses as much as digits as its factorization.

199829443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 235 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 199829443 is about 14136.1042370237. The cubic root of 199829443 is about 584.6372631342.

The spelling of 199829443 in words is "one hundred ninety-nine million, eight hundred twenty-nine thousand, four hundred forty-three".