288673666 has 16 divisors (see below), whose sum is σ = 441161280. Its totient is φ = 141629040.

The previous prime is 288673657. The next prime is 288673681. The reversal of 288673666 is 666376882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72520 + ... + 76396.

It is an arithmetic number, because the mean of its divisors is an integer number (27572580).

Almost surely, 2^288673666 is an apocalyptic number.

288673666 is a deficient number, since it is larger than the sum of its proper divisors (152487614).

288673666 is a wasteful number, since it uses less digits than its factorization.

288673666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4569.

The product of its digits is 3483648, while the sum is 52.

The square root of 288673666 is about 16990.3992301535. The cubic root of 288673666 is about 660.8999553339.

The spelling of 288673666 in words is "two hundred eighty-eight million, six hundred seventy-three thousand, six hundred sixty-six".