12118788 has 72 divisors (see below), whose sum is σ = 34618080. Its totient is φ = 3636000.

The previous prime is 12118787. The next prime is 12118793. The reversal of 12118788 is 88781121.

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

It is not an unprimeable number, because it can be changed into a prime (12118783) 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 23 ways as a sum of consecutive naturals, for example, 119938 + ... + 120038.

Almost surely, 2^12118788 is an apocalyptic number.

12118788 is a gapful number since it is divisible by the number (18) 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 12118788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17309040).

12118788 is an abundant number, since it is smaller than the sum of its proper divisors (22499292).

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

12118788 is a wasteful number, since it uses less digits than its factorization.

12118788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226 (or 117 counting only the distinct ones).

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

The square root of 12118788 is about 3481.2049638020. The cubic root of 12118788 is about 229.6958045311.

12118788 divided by its sum of digits (36) gives a palindrome (336633).

It can be divided in two parts, 1211 and 8788, that added together give a palindrome (9999).

The spelling of 12118788 in words is "twelve million, one hundred eighteen thousand, seven hundred eighty-eight".