448413509 has 8 divisors (see below), whose sum is σ = 475023840. Its totient is φ = 422104176.

The previous prime is 448413499. The next prime is 448413521. The reversal of 448413509 is 905314844.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-448413509 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 (448413599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72179 + ... + 78144.

It is an arithmetic number, because the mean of its divisors is an integer number (59377980).

Almost surely, 2^448413509 is an apocalyptic number.

It is an amenable number.

448413509 is a deficient number, since it is larger than the sum of its proper divisors (26610331).

448413509 is a wasteful number, since it uses less digits than its factorization.

448413509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150499.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 448413509 is about 21175.7764674639. The cubic root of 448413509 is about 765.4078216249.

The spelling of 448413509 in words is "four hundred forty-eight million, four hundred thirteen thousand, five hundred nine".