199043808 has 48 divisors (see below), whose sum is σ = 539352576. Its totient is φ = 64206720.

The previous prime is 199043797. The next prime is 199043813. The reversal of 199043808 is 808340991.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 199043808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30466 + ... + 36417.

It is an arithmetic number, because the mean of its divisors is an integer number (11236512).

Almost surely, 2^199043808 is an apocalyptic number.

It is an amenable number.

199043808 is an abundant number, since it is smaller than the sum of its proper divisors (340308768).

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

199043808 is a wasteful number, since it uses less digits than its factorization.

199043808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66927 (or 66919 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 199043808 is about 14108.2886276118. The cubic root of 199043808 is about 583.8700843183.

The spelling of 199043808 in words is "one hundred ninety-nine million, forty-three thousand, eight hundred eight".