9896999040 has 256 divisors, whose sum is σ = 35293305600. Its totient is φ = 2621030400.

The previous prime is 9896999039. The next prime is 9896999083. The reversal of 9896999040 is 409996989.

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 31 ways as a sum of consecutive naturals, for example, 2607384 + ... + 2611176.

It is an arithmetic number, because the mean of its divisors is an integer number (137864475).

Almost surely, 2^9896999040 is an apocalyptic number.

9896999040 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 9896999040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17646652800).

9896999040 is an abundant number, since it is smaller than the sum of its proper divisors (25396306560).

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

9896999040 is a wasteful number, since it uses less digits than its factorization.

9896999040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3972 (or 3954 counting only the distinct ones).

The product of its (nonzero) digits is 11337408, while the sum is 63.

The square root of 9896999040 is about 99483.6621762589. The cubic root of 9896999040 is about 2147.0121858523.

The spelling of 9896999040 in words is "nine billion, eight hundred ninety-six million, nine hundred ninety-nine thousand, forty".