199883445 has 32 divisors (see below), whose sum is σ = 330186240. Its totient is φ = 103202880.

The previous prime is 199883429. The next prime is 199883447. The reversal of 199883445 is 544388991.

It is not a de Polignac number, because 199883445 - 2⁴ = 199883429 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199883447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57610 + ... + 60980.

It is an arithmetic number, because the mean of its divisors is an integer number (10318320).

Almost surely, 2^199883445 is an apocalyptic number.

199883445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

199883445 is a deficient number, since it is larger than the sum of its proper divisors (130302795).

199883445 is a wasteful number, since it uses less digits than its factorization.

199883445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3505.

The product of its digits is 1244160, while the sum is 51.

The square root of 199883445 is about 14138.0141816310. The cubic root of 199883445 is about 584.6899226046.

The spelling of 199883445 in words is "one hundred ninety-nine million, eight hundred eighty-three thousand, four hundred forty-five".