9008440491 has 16 divisors (see below), whose sum is σ = 12460089600. Its totient is φ = 5782364448.

The previous prime is 9008440489. The next prime is 9008440517. The reversal of 9008440491 is 1940448009.

9008440491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9008440491 - 2¹ = 9008440489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9008440421) 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 15 ways as a sum of consecutive naturals, for example, 112981 + ... + 175446.

It is an arithmetic number, because the mean of its divisors is an integer number (778755600).

Almost surely, 2^9008440491 is an apocalyptic number.

9008440491 is a deficient number, since it is larger than the sum of its proper divisors (3451649109).

9008440491 is a wasteful number, since it uses less digits than its factorization.

9008440491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288818.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 9008440491 is about 94912.8046735529. The cubic root of 9008440491 is about 2080.7338765023.

The spelling of 9008440491 in words is "nine billion, eight million, four hundred forty thousand, four hundred ninety-one".