449899 has 4 divisors (see below), whose sum is σ = 456136. Its totient is φ = 443664.

The previous prime is 449879. The next prime is 449921. The reversal of 449899 is 998944.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449899 is a prime.

It is a super-2 number, since 2×449899² = 404818220402, which contains 22 as substring.

It is a Duffinian number.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3009 + ... + 3154.

It is an arithmetic number, because the mean of its divisors is an integer number (114034).

2⁴⁴⁹⁸⁹⁹ is an apocalyptic number.

449899 is a deficient number, since it is larger than the sum of its proper divisors (6237).

449899 is an equidigital number, since it uses as much as digits as its factorization.

449899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6236.

The product of its digits is 93312, while the sum is 43.

The square root of 449899 is about 670.7451080701. The cubic root of 449899 is about 76.6252096806.

It can be divided in two parts, 449 and 899, that multiplied together give a triangular number (403651 = T₈₉₈).

The spelling of 449899 in words is "four hundred forty-nine thousand, eight hundred ninety-nine".