8909140 has 24 divisors (see below), whose sum is σ = 18783072. Its totient is φ = 3549600.

The previous prime is 8909101. The next prime is 8909143. The reversal of 8909140 is 419098.

8909140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8909143) 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, 5415 + ... + 6865.

It is an arithmetic number, because the mean of its divisors is an integer number (782628).

Almost surely, 2^8909140 is an apocalyptic number.

It is an amenable number.

8909140 is an abundant number, since it is smaller than the sum of its proper divisors (9873932).

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

8909140 is a wasteful number, since it uses less digits than its factorization.

8909140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 8909140 is about 2984.8182524234. The cubic root of 8909140 is about 207.3060266925.

The spelling of 8909140 in words is "eight million, nine hundred nine thousand, one hundred forty".