9928880 has 40 divisors (see below), whose sum is σ = 24862992. Its totient is φ = 3665664.

The previous prime is 9928879. The next prime is 9928889. The reversal of 9928880 is 888299.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (9928889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3734 + ... + 5813.

Almost surely, 2^9928880 is an apocalyptic number.

It is an amenable number.

9928880 is an abundant number, since it is smaller than the sum of its proper divisors (14934112).

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

9928880 is a wasteful number, since it uses less digits than its factorization.

9928880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9573 (or 9567 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 9928880 is about 3151.0125356780. The cubic root of 9928880 is about 214.9315087405.

The spelling of 9928880 in words is "nine million, nine hundred twenty-eight thousand, eight hundred eighty".