449985 has 16 divisors (see below), whose sum is σ = 728640. Its totient is φ = 237120.

The previous prime is 449971. The next prime is 449987. The reversal of 449985 is 589944.

It is not a de Polignac number, because 449985 - 2⁶ = 449921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (449987) 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 15 ways as a sum of consecutive naturals, for example, 1851 + ... + 2079.

It is an arithmetic number, because the mean of its divisors is an integer number (45540).

2⁴⁴⁹⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

449985 is a deficient number, since it is larger than the sum of its proper divisors (278655).

449985 is a wasteful number, since it uses less digits than its factorization.

449985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its digits is 51840, while the sum is 39.

The square root of 449985 is about 670.8092128169. The cubic root of 449985 is about 76.6300917750.

The spelling of 449985 in words is "four hundred forty-nine thousand, nine hundred eighty-five".