189444199 has 8 divisors (see below), whose sum is σ = 216675488. Its totient is φ = 162254880.

The previous prime is 189444191. The next prime is 189444251. The reversal of 189444199 is 991444981.

189444199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189444199 - 2³ = 189444191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189444191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132 + ... + 19465.

It is an arithmetic number, because the mean of its divisors is an integer number (27084436).

Almost surely, 2^189444199 is an apocalyptic number.

189444199 is a deficient number, since it is larger than the sum of its proper divisors (27231289).

189444199 is a wasteful number, since it uses less digits than its factorization.

189444199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20985.

The product of its digits is 373248, while the sum is 49.

The square root of 189444199 is about 13763.8729651214. The cubic root of 189444199 is about 574.3285914969.

The spelling of 189444199 in words is "one hundred eighty-nine million, four hundred forty-four thousand, one hundred ninety-nine".