285065768 has 32 divisors (see below), whose sum is σ = 576780960. Its totient is φ = 131302080.

The previous prime is 285065731. The next prime is 285065777. The reversal of 285065768 is 867560582.

It is an unprimeable number.

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, 54383 + ... + 59393.

It is an arithmetic number, because the mean of its divisors is an integer number (18024405).

Almost surely, 2^285065768 is an apocalyptic number.

It is an amenable number.

285065768 is an abundant number, since it is smaller than the sum of its proper divisors (291715192).

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

285065768 is a wasteful number, since it uses less digits than its factorization.

285065768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577 (or 5573 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The square root of 285065768 is about 16883.8907838211. The cubic root of 285065768 is about 658.1350535632.

The spelling of 285065768 in words is "two hundred eighty-five million, sixty-five thousand, seven hundred sixty-eight".