285818768 has 20 divisors (see below), whose sum is σ = 554999820. Its totient is φ = 142593024.

The previous prime is 285818759. The next prime is 285818777. The reversal of 285818768 is 867818582.

It is an interprime number because it is at equal distance from previous prime (285818759) and next prime (285818777).

It can be written as a sum of positive squares in 2 ways, for example, as 174979984 + 110838784 = 13228^2 + 10528^2 .

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12233 + ... + 26856.

It is an arithmetic number, because the mean of its divisors is an integer number (27749991).

Almost surely, 2^285818768 is an apocalyptic number.

It is an amenable number.

285818768 is a deficient number, since it is larger than the sum of its proper divisors (269181052).

285818768 is a wasteful number, since it uses less digits than its factorization.

285818768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39554 (or 39548 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 53.

The square root of 285818768 is about 16906.1754397616. The cubic root of 285818768 is about 658.7140310443.

The spelling of 285818768 in words is "two hundred eighty-five million, eight hundred eighteen thousand, seven hundred sixty-eight".