288181868 has 12 divisors (see below), whose sum is σ = 543112080. Its totient is φ = 133006992.

The previous prime is 288181819. The next prime is 288181877. The reversal of 288181868 is 868181882.

It is a happy number.

288181868 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 2770928 + ... + 2771031.

It is an arithmetic number, because the mean of its divisors is an integer number (45259340).

Almost surely, 2^288181868 is an apocalyptic number.

It is an amenable number.

288181868 is a deficient number, since it is larger than the sum of its proper divisors (254930212).

288181868 is a wasteful number, since it uses less digits than its factorization.

288181868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5541976 (or 5541974 counting only the distinct ones).

The product of its digits is 393216, while the sum is 50.

The square root of 288181868 is about 16975.9202401519. The cubic root of 288181868 is about 660.5244286085.

The spelling of 288181868 in words is "two hundred eighty-eight million, one hundred eighty-one thousand, eight hundred sixty-eight".