9988938060 has 96 divisors (see below), whose sum is σ = 29015884800. Its totient is φ = 2564540160.

The previous prime is 9988937977. The next prime is 9988938061. The reversal of 9988938060 is 608398899.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 9988937985 and 9988938003.

It is not an unprimeable number, because it can be changed into a prime (9988938061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 616665 + ... + 632655.

It is an arithmetic number, because the mean of its divisors is an integer number (302248800).

Almost surely, 2^9988938060 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 9988938060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14507942400).

9988938060 is an abundant number, since it is smaller than the sum of its proper divisors (19026946740).

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

9988938060 is a wasteful number, since it uses less digits than its factorization.

9988938060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391 (or 16389 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 60.

The square root of 9988938060 is about 99944.6749957195. The cubic root of 9988938060 is about 2153.6399893529.

The spelling of 9988938060 in words is "nine billion, nine hundred eighty-eight million, nine hundred thirty-eight thousand, sixty".