565428 has 12 divisors (see below), whose sum is σ = 1319360. Its totient is φ = 188472.

The previous prime is 565427. The next prime is 565429. The reversal of 565428 is 824565.

It is an interprime number because it is at equal distance from previous prime (565427) and next prime (565429).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 565395 and 565404.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 565428.

It is not an unprimeable number, because it can be changed into a prime (565427) 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 3 ways as a sum of consecutive naturals, for example, 23548 + ... + 23571.

2⁵⁶⁵⁴²⁸ is an apocalyptic number.

It is an amenable number.

565428 is an abundant number, since it is smaller than the sum of its proper divisors (753932).

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

565428 is a wasteful number, since it uses less digits than its factorization.

565428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47126 (or 47124 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 565428 is about 751.9494663872. The cubic root of 565428 is about 82.6911636846.

The spelling of 565428 in words is "five hundred sixty-five thousand, four hundred twenty-eight".