449913 has 4 divisors (see below), whose sum is σ = 599888. Its totient is φ = 299940.

The previous prime is 449879. The next prime is 449921. The reversal of 449913 is 319944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 449913 - 2¹⁷ = 318841 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449963) 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, 74983 + ... + 74988.

It is an arithmetic number, because the mean of its divisors is an integer number (149972).

2⁴⁴⁹⁹¹³ is an apocalyptic number.

It is an amenable number.

449913 is a deficient number, since it is larger than the sum of its proper divisors (149975).

449913 is a wasteful number, since it uses less digits than its factorization.

449913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149974.

The product of its digits is 3888, while the sum is 30.

The square root of 449913 is about 670.7555441441. The cubic root of 449913 is about 76.6260044825.

The spelling of 449913 in words is "four hundred forty-nine thousand, nine hundred thirteen".