449839 has 4 divisors (see below), whose sum is σ = 484456. Its totient is φ = 415224.

The previous prime is 449833. The next prime is 449851. The reversal of 449839 is 938944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449839 - 2⁵ = 449807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 449798 and 449807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17289 + ... + 17314.

It is an arithmetic number, because the mean of its divisors is an integer number (121114).

2⁴⁴⁹⁸³⁹ is an apocalyptic number.

449839 is a deficient number, since it is larger than the sum of its proper divisors (34617).

449839 is a wasteful number, since it uses less digits than its factorization.

449839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34616.

The product of its digits is 31104, while the sum is 37.

The square root of 449839 is about 670.7003801997. The cubic root of 449839 is about 76.6218031997.

The spelling of 449839 in words is "four hundred forty-nine thousand, eight hundred thirty-nine".