189449 has 12 divisors (see below), whose sum is σ = 219600. Its totient is φ = 162864.

The previous prime is 189439. The next prime is 189463. The reversal of 189449 is 944981.

It is not a de Polignac number, because 189449 - 2⁴ = 189433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3182 + ... + 3240.

It is an arithmetic number, because the mean of its divisors is an integer number (18300).

2¹⁸⁹⁴⁴⁹ is an apocalyptic number.

189449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

189449 is a deficient number, since it is larger than the sum of its proper divisors (30151).

189449 is a wasteful number, since it uses less digits than its factorization.

189449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 91 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 189449 is about 435.2573951124. The cubic root of 189449 is about 57.4333443107.

The spelling of 189449 in words is "one hundred eighty-nine thousand, four hundred forty-nine".