9994880 has 128 divisors (see below), whose sum is σ = 28788480. Its totient is φ = 3244032.

The previous prime is 9994871. The next prime is 9994913. The reversal of 9994880 is 884999.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 102992 + ... + 103088.

It is an arithmetic number, because the mean of its divisors is an integer number (224910).

Almost surely, 2^9994880 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 9994880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14394240).

9994880 is an abundant number, since it is smaller than the sum of its proper divisors (18793600).

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

9994880 is a wasteful number, since it uses less digits than its factorization.

9994880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 9994880 is about 3161.4680134393. The cubic root of 9994880 is about 215.4066937074.

The spelling of 9994880 in words is "nine million, nine hundred ninety-four thousand, eight hundred eighty".