199000912 has 80 divisors (see below), whose sum is σ = 448846272. Its totient is φ = 84469760.

The previous prime is 199000903. The next prime is 199000913. The reversal of 199000912 is 219000991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199000913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 679038 + ... + 679330.

Almost surely, 2^199000912 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 199000912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224423136).

199000912 is an abundant number, since it is smaller than the sum of its proper divisors (249845360).

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

199000912 is a wasteful number, since it uses less digits than its factorization.

199000912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 199000912 is about 14106.7683046118. The cubic root of 199000912 is about 583.8281379568.

The spelling of 199000912 in words is "one hundred ninety-nine million, nine hundred twelve", and thus it is an aban number.