9085440000 has 780 divisors, whose sum is σ = 37461833376. Its totient is φ = 1916928000.

The previous prime is 9085439983. The next prime is 9085440011. The reversal of 9085440000 is 445809.

It is a tau number, because it is divible by the number of its divisors (780).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a self number, because there is not a number n which added to its sum of digits gives 9085440000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 698879994 + ... + 698880006.

Almost surely, 2^9085440000 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 9085440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18730916688).

9085440000 is an abundant number, since it is smaller than the sum of its proper divisors (28376393376).

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

9085440000 is an equidigital number, since it uses as much as digits as its factorization.

9085440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 9085440000 is about 95317.5744550815. The cubic root of 9085440000 is about 2086.6454125615.

Adding to 9085440000 its reverse (445809), we get a palindrome (9085885809).

The spelling of 9085440000 in words is "nine billion, eighty-five million, four hundred forty thousand".