11818996 has 36 divisors (see below), whose sum is σ = 24591168. Its totient is φ = 4953648.

The previous prime is 11818973. The next prime is 11818999. The reversal of 11818996 is 69981811.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11818999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8571 + ... + 9853.

It is an arithmetic number, because the mean of its divisors is an integer number (683088).

Almost surely, 2^11818996 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 11818996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12295584).

11818996 is an abundant number, since it is smaller than the sum of its proper divisors (12772172).

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

11818996 is a wasteful number, since it uses less digits than its factorization.

11818996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348 (or 1339 counting only the distinct ones).

The product of its digits is 31104, while the sum is 43.

The square root of 11818996 is about 3437.8766702719. The cubic root of 11818996 is about 227.7859127154.

The spelling of 11818996 in words is "eleven million, eight hundred eighteen thousand, nine hundred ninety-six".