285820268 has 24 divisors (see below), whose sum is σ = 527820720. Its totient is φ = 135051840.

The previous prime is 285820267. The next prime is 285820273. The reversal of 285820268 is 862028582.

It is not an unprimeable number, because it can be changed into a prime (285820267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27530 + ... + 36462.

It is an arithmetic number, because the mean of its divisors is an integer number (21992530).

Almost surely, 2^285820268 is an apocalyptic number.

It is an amenable number.

285820268 is a deficient number, since it is larger than the sum of its proper divisors (242000452).

285820268 is a wasteful number, since it uses less digits than its factorization.

285820268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9377 (or 9375 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 41.

The square root of 285820268 is about 16906.2198021911. The cubic root of 285820268 is about 658.7151833704.

The spelling of 285820268 in words is "two hundred eighty-five million, eight hundred twenty thousand, two hundred sixty-eight".