560640 has 80 divisors (see below), whose sum is σ = 1816848. Its totient is φ = 147456.

The previous prime is 560639. The next prime is 560641. The reversal of 560640 is 46065.

It is an interprime number because it is at equal distance from previous prime (560639) and next prime (560641).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (560641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7644 + ... + 7716.

2⁵⁶⁰⁶⁴⁰ 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 560640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908424).

560640 is an abundant number, since it is smaller than the sum of its proper divisors (1256208).

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

560640 is an equidigital number, since it uses as much as digits as its factorization.

560640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 560640 is about 748.7589732350. The cubic root of 560640 is about 82.4570943107.

The spelling of 560640 in words is "five hundred sixty thousand, six hundred forty".