565642040 has 32 divisors (see below), whose sum is σ = 1277415360. Its totient is φ = 225417600.

The previous prime is 565641997. The next prime is 565642043. The reversal of 565642040 is 40246565.

It is a junction number, because it is equal to n+sod(n) for n = 565641988 and 565642006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (565642043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15251 + ... + 36930.

It is an arithmetic number, because the mean of its divisors is an integer number (39919230).

Almost surely, 2^565642040 is an apocalyptic number.

It is an amenable number.

565642040 is an abundant number, since it is smaller than the sum of its proper divisors (711773320).

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

565642040 is a wasteful number, since it uses less digits than its factorization.

565642040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52463 (or 52459 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 565642040 is about 23783.2302263591. The cubic root of 565642040 is about 827.0159647993.

The spelling of 565642040 in words is "five hundred sixty-five million, six hundred forty-two thousand, forty".