9840399900 has 72 divisors (see below), whose sum is σ = 28483010304. Its totient is φ = 2623051200.

The previous prime is 9840399869. The next prime is 9840399937. The reversal of 9840399900 is 99930489.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 991965 + ... + 1001835.

Almost surely, 2^9840399900 is an apocalyptic number.

It is an amenable number.

9840399900 is an abundant number, since it is smaller than the sum of its proper divisors (18642610404).

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

9840399900 is a wasteful number, since it uses less digits than its factorization.

9840399900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13211 (or 13204 counting only the distinct ones).

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 9840399900 is about 99198.7898111665. The cubic root of 9840399900 is about 2142.9115680780.

The spelling of 9840399900 in words is "nine billion, eight hundred forty million, three hundred ninety-nine thousand, nine hundred".