8809140 has 24 divisors (see below), whose sum is σ = 24665760. Its totient is φ = 2349088.

The previous prime is 8809139. The next prime is 8809153. The reversal of 8809140 is 419088.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8809098 and 8809107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73350 + ... + 73469.

It is an arithmetic number, because the mean of its divisors is an integer number (1027740).

Almost surely, 2^8809140 is an apocalyptic number.

It is an amenable number.

8809140 is an abundant number, since it is smaller than the sum of its proper divisors (15856620).

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

8809140 is a wasteful number, since it uses less digits than its factorization.

8809140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146831 (or 146829 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8809140 is about 2968.0195417146. The cubic root of 8809140 is about 206.5274759368.

The spelling of 8809140 in words is "eight million, eight hundred nine thousand, one hundred forty".