9115589340 has 720 divisors, whose sum is σ = 35781752160. Its totient is φ = 1914762240.

The previous prime is 9115589311. The next prime is 9115589377. The reversal of 9115589340 is 439855119.

9115589340 is a `hidden beast` number, since 9 + 1 + 1 + 558 + 93 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 83629206 + ... + 83629314.

It is an arithmetic number, because the mean of its divisors is an integer number (49696878).

Almost surely, 2^9115589340 is an apocalyptic number.

9115589340 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9115589340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17890876080).

9115589340 is an abundant number, since it is smaller than the sum of its proper divisors (26666162820).

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

9115589340 is a wasteful number, since it uses less digits than its factorization.

9115589340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 45.

The square root of 9115589340 is about 95475.5955205308. The cubic root of 9115589340 is about 2088.9509887206.

The spelling of 9115589340 in words is "nine billion, one hundred fifteen million, five hundred eighty-nine thousand, three hundred forty".