199449 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 129888.

The previous prime is 199447. The next prime is 199453. The reversal of 199449 is 944991.

199449 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 199449 - 2¹ = 199447 is a prime.

199449 is strictly pandigital in base 7.

199449 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2197 + ... + 2285.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹⁹⁹⁴⁴⁹ is an apocalyptic number.

It is an amenable number.

199449 is a deficient number, since it is larger than the sum of its proper divisors (102951).

199449 is an equidigital number, since it uses as much as digits as its factorization.

199449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 175 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 199449 is about 446.5971338914. The cubic root of 199449 is about 58.4266009109.

The spelling of 199449 in words is "one hundred ninety-nine thousand, four hundred forty-nine".