380655866 has 8 divisors (see below), whose sum is σ = 584262624. Its totient is φ = 185901660.

The previous prime is 380655859. The next prime is 380655881. The reversal of 380655866 is 668556083.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 380655866.

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, 2213030 + ... + 2213201.

It is an arithmetic number, because the mean of its divisors is an integer number (73032828).

Almost surely, 2^380655866 is an apocalyptic number.

380655866 is a deficient number, since it is larger than the sum of its proper divisors (203606758).

380655866 is a wasteful number, since it uses less digits than its factorization.

380655866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4426276.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The square root of 380655866 is about 19510.4040450217. The cubic root of 380655866 is about 724.7321188684.

The spelling of 380655866 in words is "three hundred eighty million, six hundred fifty-five thousand, eight hundred sixty-six".