565040 has 40 divisors (see below), whose sum is σ = 1502880. Its totient is φ = 193536.

The previous prime is 565039. The next prime is 565049. The reversal of 565040 is 40565.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56 + ... + 1064.

It is an arithmetic number, because the mean of its divisors is an integer number (37572).

2⁵⁶⁵⁰⁴⁰ 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 565040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751440).

565040 is an abundant number, since it is smaller than the sum of its proper divisors (937840).

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

565040 is a wasteful number, since it uses less digits than its factorization.

565040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 565040 is about 751.6914260519. The cubic root of 565040 is about 82.6722449699.

The spelling of 565040 in words is "five hundred sixty-five thousand, forty".