199105800 has 48 divisors (see below), whose sum is σ = 617229840. Its totient is φ = 53094720.

The previous prime is 199105787. The next prime is 199105801. The reversal of 199105800 is 8501991.

199105800 is digitally balanced in base 2, 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 (199105801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165322 + ... + 166521.

It is an arithmetic number, because the mean of its divisors is an integer number (12858955).

Almost surely, 2^199105800 is an apocalyptic number.

199105800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199105800 is an abundant number, since it is smaller than the sum of its proper divisors (418124040).

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

199105800 is a wasteful number, since it uses less digits than its factorization.

199105800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331862 (or 331853 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 199105800 is about 14110.4854629456. The cubic root of 199105800 is about 583.9306932828.

The spelling of 199105800 in words is "one hundred ninety-nine million, one hundred five thousand, eight hundred".