565727440 has 40 divisors (see below), whose sum is σ = 1327403880. Its totient is φ = 224211456.

The previous prime is 565727429. The next prime is 565727483. The reversal of 565727440 is 44727565.

It can be written as a sum of positive squares in 4 ways, for example, as 257795136 + 307932304 = 16056^2 + 17548^2 .

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 (40).

It is a junction number, because it is equal to n+sod(n) for n = 565727393 and 565727402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23719 + ... + 41158.

It is an arithmetic number, because the mean of its divisors is an integer number (33185097).

Almost surely, 2^565727440 is an apocalyptic number.

It is an amenable number.

565727440 is an abundant number, since it is smaller than the sum of its proper divisors (761676440).

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

565727440 is a wasteful number, since it uses less digits than its factorization.

565727440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64999 (or 64993 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The square root of 565727440 is about 23785.0255412938. The cubic root of 565727440 is about 827.0575833521.

The spelling of 565727440 in words is "five hundred sixty-five million, seven hundred twenty-seven thousand, four hundred forty".