449889 has 8 divisors (see below), whose sum is σ = 654432. Its totient is φ = 272640.

The previous prime is 449879. The next prime is 449921. The reversal of 449889 is 988944.

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

It is not a de Polignac number, because 449889 - 2¹¹ = 447841 is a prime.

It is a super-2 number, since 2×449889² = 404800224642, which contains 22 as substring.

It is a Curzon number.

449889 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 449889.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 449889.

It is not an unprimeable number, because it can be changed into a prime (449879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6784 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (81804).

2⁴⁴⁹⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

449889 is a deficient number, since it is larger than the sum of its proper divisors (204543).

449889 is a wasteful number, since it uses less digits than its factorization.

449889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13647.

The product of its digits is 82944, while the sum is 42.

The square root of 449889 is about 670.7376536322. The cubic root of 449889 is about 76.6246419548.

The spelling of 449889 in words is "four hundred forty-nine thousand, eight hundred eighty-nine".