564940 has 24 divisors (see below), whose sum is σ = 1213632. Its totient is φ = 220800.

The previous prime is 564937. The next prime is 564959. The reversal of 564940 is 49465.

564940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 564899 and 564908.

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, 640 + ... + 1240.

It is an arithmetic number, because the mean of its divisors is an integer number (50568).

2⁵⁶⁴⁹⁴⁰ is an apocalyptic number.

It is an amenable number.

564940 is an abundant number, since it is smaller than the sum of its proper divisors (648692).

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

564940 is a wasteful number, since it uses less digits than its factorization.

564940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 564940 is about 751.6249064527. The cubic root of 564940 is about 82.6673676088.

The spelling of 564940 in words is "five hundred sixty-four thousand, nine hundred forty".