449226409 has 4 divisors (see below), whose sum is σ = 468758016. Its totient is φ = 429694804.

The previous prime is 449226403. The next prime is 449226433. The reversal of 449226409 is 904622944.

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 449226409 - 2⁹ = 449225897 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449226403) 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, 9765769 + ... + 9765814.

It is an arithmetic number, because the mean of its divisors is an integer number (117189504).

Almost surely, 2^449226409 is an apocalyptic number.

It is an amenable number.

449226409 is a deficient number, since it is larger than the sum of its proper divisors (19531607).

449226409 is a wasteful number, since it uses less digits than its factorization.

449226409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19531606.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 449226409 is about 21194.9618777671. The cubic root of 449226409 is about 765.8700619468.

The spelling of 449226409 in words is "four hundred forty-nine million, two hundred twenty-six thousand, four hundred nine".