9998090240 has 180 divisors, whose sum is σ = 24988900608. Its totient is φ = 3839754240.

The previous prime is 9998090237. The next prime is 9998090327. The reversal of 9998090240 is 420908999.

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 11 ways as a sum of consecutive naturals, for example, 78725057 + ... + 78725183.

Almost surely, 2^9998090240 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 9998090240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12494450304).

9998090240 is an abundant number, since it is smaller than the sum of its proper divisors (14990810368).

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

9998090240 is an equidigital number, since it uses as much as digits as its factorization.

9998090240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 9998090240 is about 99990.4507440586. The cubic root of 9998090240 is about 2154.2975328605.

The spelling of 9998090240 in words is "nine billion, nine hundred ninety-eight million, ninety thousand, two hundred forty".