565039428 has 12 divisors (see below), whose sum is σ = 1318425360. Its totient is φ = 188346472.

The previous prime is 565039427. The next prime is 565039441. The reversal of 565039428 is 824930565.

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

It is a self number, because there is not a number n which added to its sum of digits gives 565039428.

It is not an unprimeable number, because it can be changed into a prime (565039427) 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 3 ways as a sum of consecutive naturals, for example, 23543298 + ... + 23543321.

It is an arithmetic number, because the mean of its divisors is an integer number (109868780).

Almost surely, 2^565039428 is an apocalyptic number.

It is an amenable number.

565039428 is an abundant number, since it is smaller than the sum of its proper divisors (753385932).

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

565039428 is a wasteful number, since it uses less digits than its factorization.

565039428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47086626 (or 47086624 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 565039428 is about 23770.5580077540. The cubic root of 565039428 is about 826.7221707298.

The spelling of 565039428 in words is "five hundred sixty-five million, thirty-nine thousand, four hundred twenty-eight".