16383866 has 8 divisors (see below), whose sum is σ = 25644384. Its totient is φ = 7835740.

The previous prime is 16383839. The next prime is 16383877. The reversal of 16383866 is 66838361.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178040 + ... + 178131.

It is an arithmetic number, because the mean of its divisors is an integer number (3205548).

Almost surely, 2^16383866 is an apocalyptic number.

16383866 is a deficient number, since it is larger than the sum of its proper divisors (9260518).

16383866 is a wasteful number, since it uses less digits than its factorization.

16383866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356196.

The product of its digits is 124416, while the sum is 41.

The square root of 16383866 is about 4047.6988524346. The cubic root of 16383866 is about 253.9834758920.

The spelling of 16383866 in words is "sixteen million, three hundred eighty-three thousand, eight hundred sixty-six".