8809940 has 12 divisors (see below), whose sum is σ = 18500916. Its totient is φ = 3523968.

The previous prime is 8809937. The next prime is 8809949. The reversal of 8809940 is 499088.

8809940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1214404 + 7595536 = 1102^2 + 2756^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8809894 and 8809903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8809949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220229 + ... + 220268.

It is an arithmetic number, because the mean of its divisors is an integer number (1541743).

Almost surely, 2^8809940 is an apocalyptic number.

It is an amenable number.

8809940 is an abundant number, since it is smaller than the sum of its proper divisors (9690976).

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

8809940 is a wasteful number, since it uses less digits than its factorization.

8809940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440506 (or 440504 counting only the distinct ones).

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

The square root of 8809940 is about 2968.1543086571. The cubic root of 8809940 is about 206.5337276625.

The spelling of 8809940 in words is "eight million, eight hundred nine thousand, nine hundred forty".