449749 has 4 divisors (see below), whose sum is σ = 473440. Its totient is φ = 426060.

The previous prime is 449741. The next prime is 449759. The reversal of 449749 is 947944.

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 a cyclic number.

It is not a de Polignac number, because 449749 - 2³ = 449741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11817 + ... + 11854.

It is an arithmetic number, because the mean of its divisors is an integer number (118360).

2⁴⁴⁹⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

449749 is a deficient number, since it is larger than the sum of its proper divisors (23691).

449749 is a wasteful number, since it uses less digits than its factorization.

449749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23690.

The product of its digits is 36288, while the sum is 37.

The square root of 449749 is about 670.6332828007. The cubic root of 449749 is about 76.6166929104.

The spelling of 449749 in words is "four hundred forty-nine thousand, seven hundred forty-nine".