11718868 has 48 divisors (see below), whose sum is σ = 25288704. Its totient is φ = 4641120.

The previous prime is 11718859. The next prime is 11718901. The reversal of 11718868 is 86881711.

It is a happy number.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 11718868.

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 15 ways as a sum of consecutive naturals, for example, 19671 + ... + 20257.

It is an arithmetic number, because the mean of its divisors is an integer number (526848).

Almost surely, 2^11718868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11718868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12644352).

11718868 is an abundant number, since it is smaller than the sum of its proper divisors (13569836).

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

11718868 is a wasteful number, since it uses less digits than its factorization.

11718868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 650 counting only the distinct ones).

The product of its digits is 21504, while the sum is 40.

The square root of 11718868 is about 3423.2832193670. The cubic root of 11718868 is about 227.1408364845.

The spelling of 11718868 in words is "eleven million, seven hundred eighteen thousand, eight hundred sixty-eight".