289449 has 12 divisors (see below), whose sum is σ = 432900. Its totient is φ = 186144.

The previous prime is 289439. The next prime is 289453. The reversal of 289449 is 944982.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 59049 + 230400 = 243^2 + 480^2 .

It is not a de Polignac number, because 289449 - 2⁵ = 289417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (289439) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (36075).

2²⁸⁹⁴⁴⁹ is an apocalyptic number.

289449 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

289449 is a deficient number, since it is larger than the sum of its proper divisors (143451).

289449 is a wasteful number, since it uses less digits than its factorization.

289449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1141 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 289449 is about 538.0046468201. The cubic root of 289449 is about 66.1491118979.

The spelling of 289449 in words is "two hundred eighty-nine thousand, four hundred forty-nine".