199071208 has 64 divisors (see below), whose sum is σ = 451584000. Its totient is φ = 80367552.

The previous prime is 199071203. The next prime is 199071263. The reversal of 199071208 is 802170991.

It is not an unprimeable number, because it can be changed into a prime (199071203) 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 15 ways as a sum of consecutive naturals, for example, 236853 + ... + 237691.

It is an arithmetic number, because the mean of its divisors is an integer number (7056000).

Almost surely, 2^199071208 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 199071208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225792000).

199071208 is an abundant number, since it is smaller than the sum of its proper divisors (252512792).

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

199071208 is a wasteful number, since it uses less digits than its factorization.

199071208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 199071208 is about 14109.2596545673. The cubic root of 199071208 is about 583.8968745786.

It can be divided in two parts, 19907 and 1208, that added together give a triangular number (21115 = T₂₀₅).

The spelling of 199071208 in words is "one hundred ninety-nine million, seventy-one thousand, two hundred eight".