449709 has 12 divisors (see below), whose sum is σ = 650016. Its totient is φ = 276432.

The previous prime is 449699. The next prime is 449741. The reversal of 449709 is 907944.

It is not a de Polignac number, because 449709 - 2⁴ = 449693 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449759) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64 + ... + 950.

It is an arithmetic number, because the mean of its divisors is an integer number (54168).

2⁴⁴⁹⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

449709 is a deficient number, since it is larger than the sum of its proper divisors (200307).

449709 is a wasteful number, since it uses less digits than its factorization.

449709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 449709 is about 670.6034595795. The cubic root of 449709 is about 76.6144214519.

The spelling of 449709 in words is "four hundred forty-nine thousand, seven hundred nine".