8989040 has 20 divisors (see below), whose sum is σ = 20899704. Its totient is φ = 3595584.

The previous prime is 8989027. The next prime is 8989051. The reversal of 8989040 is 409898.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 8988985 and 8989003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56102 + ... + 56261.

Almost surely, 2^8989040 is an apocalyptic number.

8989040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8989040 is an abundant number, since it is smaller than the sum of its proper divisors (11910664).

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

8989040 is a wasteful number, since it uses less digits than its factorization.

8989040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112376 (or 112370 counting only the distinct ones).

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

The square root of 8989040 is about 2998.1727768759. The cubic root of 8989040 is about 207.9239120120.

The spelling of 8989040 in words is "eight million, nine hundred eighty-nine thousand, forty".