449476709 has 4 divisors (see below), whose sum is σ = 490338240. Its totient is φ = 408615180.

The previous prime is 449476693. The next prime is 449476763. The reversal of 449476709 is 907674944.

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 449476709 - 2⁴ = 449476693 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 (449476009) 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, 20430749 + ... + 20430770.

It is an arithmetic number, because the mean of its divisors is an integer number (122584560).

Almost surely, 2^449476709 is an apocalyptic number.

It is an amenable number.

449476709 is a deficient number, since it is larger than the sum of its proper divisors (40861531).

449476709 is a wasteful number, since it uses less digits than its factorization.

449476709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40861530.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The square root of 449476709 is about 21200.8657606240. The cubic root of 449476709 is about 766.0122780472.

The spelling of 449476709 in words is "four hundred forty-nine million, four hundred seventy-six thousand, seven hundred nine".