9005440609 has 9 divisors (see below), whose sum is σ = 9899689681. Its totient is φ = 8185815220.

The previous prime is 9005440607. The next prime is 9005440643. The reversal of 9005440609 is 9060445009.

The square root of 9005440609 is 94897.

It is a perfect power (a square), and thus also a powerful number.

9005440609 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9005440609 - 2¹ = 9005440607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9005440607) 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 8 ways as a sum of consecutive naturals, for example, 1039554 + ... + 1048180.

Almost surely, 2^9005440609 is an apocalyptic number.

9005440609 is the 94897-th square number.

9005440609 is the 47449-th centered octagonal number.

It is an amenable number.

9005440609 is a deficient number, since it is larger than the sum of its proper divisors (894249072).

9005440609 is an frugal number, since it uses more digits than its factorization.

9005440609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17276 (or 8638 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The cubic root of 9005440609 is about 2080.5028839085.

The spelling of 9005440609 in words is "nine billion, five million, four hundred forty thousand, six hundred nine".