8560640 has 112 divisors (see below), whose sum is σ = 23591520. Its totient is φ = 2949120.

The previous prime is 8560633. The next prime is 8560661. The reversal of 8560640 is 460658.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450551 + ... + 450569.

Almost surely, 2^8560640 is an apocalyptic number.

8560640 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 8560640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11795760).

8560640 is an abundant number, since it is smaller than the sum of its proper divisors (15030880).

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

8560640 is a wasteful number, since it uses less digits than its factorization.

8560640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8560640 is about 2925.8571393696. The cubic root of 8560640 is about 204.5669223409.

The spelling of 8560640 in words is "eight million, five hundred sixty thousand, six hundred forty".