9889040 has 40 divisors (see below), whose sum is σ = 26278080. Its totient is φ = 3390336.

The previous prime is 9889039. The next prime is 9889051. The reversal of 9889040 is 409889.

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

It is a super-2 number, since 2×9889040² = 195586224243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9888985 and 9889003.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8270 + ... + 9389.

It is an arithmetic number, because the mean of its divisors is an integer number (656952).

Almost surely, 2^9889040 is an apocalyptic number.

It is an amenable number.

9889040 is an abundant number, since it is smaller than the sum of its proper divisors (16389040).

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

9889040 is a wasteful number, since it uses less digits than its factorization.

9889040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17679 (or 17673 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 9889040 is about 3144.6844038790. The cubic root of 9889040 is about 214.6436498261.

The spelling of 9889040 in words is "nine million, eight hundred eighty-nine thousand, forty".