285236268 has 24 divisors (see below), whose sum is σ = 704701872. Its totient is φ = 89485824.

The previous prime is 285236261. The next prime is 285236291. The reversal of 285236268 is 862632582.

It is not an unprimeable number, because it can be changed into a prime (285236261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698905 + ... + 699312.

It is an arithmetic number, because the mean of its divisors is an integer number (29362578).

Almost surely, 2^285236268 is an apocalyptic number.

It is an amenable number.

285236268 is an abundant number, since it is smaller than the sum of its proper divisors (419465604).

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

285236268 is a wasteful number, since it uses less digits than its factorization.

285236268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398241 (or 1398239 counting only the distinct ones).

The product of its digits is 276480, while the sum is 42.

The square root of 285236268 is about 16888.9392206852. The cubic root of 285236268 is about 658.2662392696.

The spelling of 285236268 in words is "two hundred eighty-five million, two hundred thirty-six thousand, two hundred sixty-eight".