9090040000 has 70 divisors (see below), whose sum is σ = 22540444124. Its totient is φ = 3636000000.

The previous prime is 9090039991. The next prime is 9090040027. The reversal of 9090040000 is 400909.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 73626 + ... + 153625.

Almost surely, 2^9090040000 is an apocalyptic number.

It is an amenable number.

9090040000 is an abundant number, since it is smaller than the sum of its proper divisors (13450404124).

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

9090040000 is an equidigital number, since it uses as much as digits as its factorization.

9090040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227283 (or 227258 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 9090040000 is about 95341.7012644520. The cubic root of 9090040000 is about 2086.9975125302.

Adding to 9090040000 its reverse (400909), we get a palindrome (9090440909).

The spelling of 9090040000 in words is "nine billion, ninety million, forty thousand".