9040591872 has 176 divisors, whose sum is σ = 28834533280. Its totient is φ = 2781609984.

The previous prime is 9040591871. The next prime is 9040591897. The reversal of 9040591872 is 2781950409.

9040591872 is a `hidden beast` number, since 90 + 405 + 91 + 8 + 72 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9040591871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 346848 + ... + 372000.

Almost surely, 2^9040591872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9040591872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14417266640).

9040591872 is an abundant number, since it is smaller than the sum of its proper divisors (19793941408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9040591872 is a wasteful number, since it uses less digits than its factorization.

9040591872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25195 (or 25171 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 9040591872 is about 95082.0270713661. The cubic root of 9040591872 is about 2083.2063369172.

The spelling of 9040591872 in words is "nine billion, forty million, five hundred ninety-one thousand, eight hundred seventy-two".