565404642 has 48 divisors (see below), whose sum is σ = 1364867712. Its totient is φ = 167686560.

The previous prime is 565404599. The next prime is 565404643. The reversal of 565404642 is 246404565.

565404642 is a `hidden beast` number, since 5 + 6 + 5 + 4 + 0 + 4 + 642 = 666.

565404642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 565404597 and 565404606.

It is not an unprimeable number, because it can be changed into a prime (565404643) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21073 + ... + 39684.

It is an arithmetic number, because the mean of its divisors is an integer number (28434744).

Almost surely, 2^565404642 is an apocalyptic number.

565404642 is an abundant number, since it is smaller than the sum of its proper divisors (799463070).

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

565404642 is a wasteful number, since it uses less digits than its factorization.

565404642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60823 (or 60820 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 565404642 is about 23778.2388330170. The cubic root of 565404642 is about 826.9002500332.

The spelling of 565404642 in words is "five hundred sixty-five million, four hundred four thousand, six hundred forty-two".