8915140 has 48 divisors (see below), whose sum is σ = 21358512. Its totient is φ = 3096576.

The previous prime is 8915131. The next prime is 8915141. The reversal of 8915140 is 415198.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 46656 + 8868484 = 216^2 + 2978^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8915099 and 8915108.

It is not an unprimeable number, because it can be changed into a prime (8915141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3412 + ... + 5428.

It is an arithmetic number, because the mean of its divisors is an integer number (444969).

Almost surely, 2^8915140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8915140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10679256).

8915140 is an abundant number, since it is smaller than the sum of its proper divisors (12443372).

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

8915140 is a wasteful number, since it uses less digits than its factorization.

8915140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2056 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 8915140 is about 2985.8231695799. The cubic root of 8915140 is about 207.3525540804.

The spelling of 8915140 in words is "eight million, nine hundred fifteen thousand, one hundred forty".