565340 has 24 divisors (see below), whose sum is σ = 1239840. Its totient is φ = 216128.

The previous prime is 565337. The next prime is 565343. The reversal of 565340 is 43565.

It is an interprime number because it is at equal distance from previous prime (565337) and next prime (565343).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (51660).

2⁵⁶⁵³⁴⁰ is an apocalyptic number.

It is an amenable number.

565340 is an abundant number, since it is smaller than the sum of its proper divisors (674500).

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

565340 is a wasteful number, since it uses less digits than its factorization.

565340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 565340 is about 751.8909495399. The cubic root of 565340 is about 82.6868736011.

The spelling of 565340 in words is "five hundred sixty-five thousand, three hundred forty".