9040073491 has 4 divisors (see below), whose sum is σ = 9040390632. Its totient is φ = 9039756352.

The previous prime is 9040073467. The next prime is 9040073501. The reversal of 9040073491 is 1943700409.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9040073491 - 2³¹ = 6892589843 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9040073491.

It is not an unprimeable number, because it can be changed into a prime (9040073291) 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, 111070 + ... + 174403.

It is an arithmetic number, because the mean of its divisors is an integer number (2260097658).

Almost surely, 2^9040073491 is an apocalyptic number.

9040073491 is a deficient number, since it is larger than the sum of its proper divisors (317141).

9040073491 is a wasteful number, since it uses less digits than its factorization.

9040073491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317140.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 9040073491 is about 95079.3010649531. The cubic root of 9040073491 is about 2083.1665196412.

The spelling of 9040073491 in words is "nine billion, forty million, seventy-three thousand, four hundred ninety-one".