16888668 has 12 divisors (see below), whose sum is σ = 39406920. Its totient is φ = 5629552.

The previous prime is 16888631. The next prime is 16888681. The reversal of 16888668 is 86688861.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 16888668.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703683 + ... + 703706.

It is an arithmetic number, because the mean of its divisors is an integer number (3283910).

Almost surely, 2^16888668 is an apocalyptic number.

It is an amenable number.

16888668 is an abundant number, since it is smaller than the sum of its proper divisors (22518252).

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

16888668 is a wasteful number, since it uses less digits than its factorization.

16888668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1407396 (or 1407394 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The square root of 16888668 is about 4109.5824605427. The cubic root of 16888668 is about 256.5656235393.

The spelling of 16888668 in words is "sixteen million, eight hundred eighty-eight thousand, six hundred sixty-eight".