11788812 has 108 divisors (see below), whose sum is σ = 35728056. Its totient is φ = 3265920.

The previous prime is 11788807. The next prime is 11788813. The reversal of 11788812 is 21888711.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11788813) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 72243 + ... + 72405.

Almost surely, 2^11788812 is an apocalyptic number.

11788812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11788812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17864028).

11788812 is an abundant number, since it is smaller than the sum of its proper divisors (23939244).

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

11788812 is a wasteful number, since it uses less digits than its factorization.

11788812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 216 counting only the distinct ones).

The product of its digits is 7168, while the sum is 36.

The square root of 11788812 is about 3433.4839449166. The cubic root of 11788812 is about 227.5918366898.

The spelling of 11788812 in words is "eleven million, seven hundred eighty-eight thousand, eight hundred twelve".