9000090918 has 96 divisors (see below), whose sum is σ = 24077342016. Its totient is φ = 2366025984.

The previous prime is 9000090907. The next prime is 9000090929. The reversal of 9000090918 is 8190900009.

It is an interprime number because it is at equal distance from previous prime (9000090907) and next prime (9000090929).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 510580 + ... + 527912.

It is an arithmetic number, because the mean of its divisors is an integer number (250805646).

Almost surely, 2^9000090918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9000090918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12038671008).

9000090918 is an abundant number, since it is smaller than the sum of its proper divisors (15077251098).

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

9000090918 is a wasteful number, since it uses less digits than its factorization.

9000090918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17678 (or 17675 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 9000090918 is about 94868.8089837751. The cubic root of 9000090918 is about 2080.0908273639.

The spelling of 9000090918 in words is "nine billion, ninety thousand, nine hundred eighteen".