286234868 has 6 divisors (see below), whose sum is σ = 500911026. Its totient is φ = 143117432.

The previous prime is 286234859. The next prime is 286234889. The reversal of 286234868 is 868432682.

It can be written as a sum of positive squares in only one way, i.e., 248755984 + 37478884 = 15772^2 + 6122^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35779355 + ... + 35779362.

It is an arithmetic number, because the mean of its divisors is an integer number (83485171).

Almost surely, 2^286234868 is an apocalyptic number.

It is an amenable number.

286234868 is a deficient number, since it is larger than the sum of its proper divisors (214676158).

286234868 is a wasteful number, since it uses less digits than its factorization.

286234868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71558721 (or 71558719 counting only the distinct ones).

The product of its digits is 884736, while the sum is 47.

The square root of 286234868 is about 16918.4771182279. The cubic root of 286234868 is about 659.0335318815.

The spelling of 286234868 in words is "two hundred eighty-six million, two hundred thirty-four thousand, eight hundred sixty-eight".