384516666 has 16 divisors (see below), whose sum is σ = 854481600. Its totient is φ = 128172204.

The previous prime is 384516647. The next prime is 384516677. The reversal of 384516666 is 666615483.

384516666 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3560286 + ... + 3560393.

It is an arithmetic number, because the mean of its divisors is an integer number (53405100).

Almost surely, 2^384516666 is an apocalyptic number.

384516666 is an abundant number, since it is smaller than the sum of its proper divisors (469964934).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384516666 is a wasteful number, since it uses less digits than its factorization.

384516666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7120690 (or 7120684 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 384516666 is about 19609.0965115683. The cubic root of 384516666 is about 727.1740786870.

The spelling of 384516666 in words is "three hundred eighty-four million, five hundred sixteen thousand, six hundred sixty-six".