8548640 has 72 divisors (see below), whose sum is σ = 21321468. Its totient is φ = 3238400.

The previous prime is 8548627. The next prime is 8548643. The reversal of 8548640 is 468458.

It can be written as a sum of positive squares in 2 ways, for example, as 8133904 + 414736 = 2852^2 + 644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8548640.

It is not an unprimeable number, because it can be changed into a prime (8548643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84590 + ... + 84690.

Almost surely, 2^8548640 is an apocalyptic number.

8548640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8548640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10660734).

8548640 is an abundant number, since it is smaller than the sum of its proper divisors (12772828).

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

8548640 is a wasteful number, since it uses less digits than its factorization.

8548640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 8548640 is about 2923.8057391010. The cubic root of 8548640 is about 204.4712927703.

The spelling of 8548640 in words is "eight million, five hundred forty-eight thousand, six hundred forty".