9988044 has 48 divisors (see below), whose sum is σ = 26925696. Its totient is φ = 2848000.

The previous prime is 9988007. The next prime is 9988057. The reversal of 9988044 is 4408899.

9988044 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9988044² = 199522045891872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9987987 and 9988005.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19 + ... + 4469.

It is an arithmetic number, because the mean of its divisors is an integer number (560952).

Almost surely, 2^9988044 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 9988044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13462848).

9988044 is an abundant number, since it is smaller than the sum of its proper divisors (16937652).

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

9988044 is a wasteful number, since it uses less digits than its factorization.

9988044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486 (or 4484 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 9988044 is about 3160.3866852017. The cubic root of 9988044 is about 215.3575733580.

The spelling of 9988044 in words is "nine million, nine hundred eighty-eight thousand, forty-four".