288145868 has 72 divisors (see below), whose sum is σ = 566342784. Its totient is φ = 128044800.

The previous prime is 288145853. The next prime is 288145873. The reversal of 288145868 is 868541882.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1835246 + ... + 1835402.

It is an arithmetic number, because the mean of its divisors is an integer number (7865872).

Almost surely, 2^288145868 is an apocalyptic number.

It is an amenable number.

288145868 is a deficient number, since it is larger than the sum of its proper divisors (278196916).

288145868 is a wasteful number, since it uses less digits than its factorization.

288145868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 250 counting only the distinct ones).

The product of its digits is 983040, while the sum is 50.

The square root of 288145868 is about 16974.8598816014. The cubic root of 288145868 is about 660.4969229806.

The spelling of 288145868 in words is "two hundred eighty-eight million, one hundred forty-five thousand, eight hundred sixty-eight".