8642560 has 56 divisors (see below), whose sum is σ = 20839176. Its totient is φ = 3440640.

The previous prime is 8642533. The next prime is 8642567. The reversal of 8642560 is 652468.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8642567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40855 + ... + 41065.

Almost surely, 2^8642560 is an apocalyptic number.

8642560 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 8642560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10419588).

8642560 is an abundant number, since it is smaller than the sum of its proper divisors (12196616).

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

8642560 is an equidigital number, since it uses as much as digits as its factorization.

8642560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 8642560 is about 2939.8231239311. The cubic root of 8642560 is about 205.2173779815.

The spelling of 8642560 in words is "eight million, six hundred forty-two thousand, five hundred sixty".