563440 has 20 divisors (see below), whose sum is σ = 1310184. Its totient is φ = 225344.

The previous prime is 563419. The next prime is 563447. The reversal of 563440 is 44365.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563447) 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, 3442 + ... + 3601.

2⁵⁶³⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

563440 is an abundant number, since it is smaller than the sum of its proper divisors (746744).

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

563440 is a wasteful number, since it uses less digits than its factorization.

563440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7056 (or 7050 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 563440 is about 750.6264050778. The cubic root of 563440 is about 82.5941380265.

The spelling of 563440 in words is "five hundred sixty-three thousand, four hundred forty".