449073509 has 8 divisors (see below), whose sum is σ = 455797440. Its totient is φ = 442360800.

The previous prime is 449073503. The next prime is 449073523. The reversal of 449073509 is 905370944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449073509 - 2¹⁶ = 449007973 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 (449073503) 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 7 ways as a sum of consecutive naturals, for example, 112274 + ... + 116204.

It is an arithmetic number, because the mean of its divisors is an integer number (56974680).

Almost surely, 2^449073509 is an apocalyptic number.

It is an amenable number.

449073509 is a deficient number, since it is larger than the sum of its proper divisors (6723931).

449073509 is a wasteful number, since it uses less digits than its factorization.

449073509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 449073509 is about 21191.3545815269. The cubic root of 449073509 is about 765.7831608369.

The spelling of 449073509 in words is "four hundred forty-nine million, seventy-three thousand, five hundred nine".