12188424 has 32 divisors (see below), whose sum is σ = 32076000. Its totient is φ = 3848832.

The previous prime is 12188411. The next prime is 12188431. The reversal of 12188424 is 42488121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12188391 and 12188400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12909 + ... + 13820.

It is an arithmetic number, because the mean of its divisors is an integer number (1002375).

Almost surely, 2^12188424 is an apocalyptic number.

It is an amenable number.

12188424 is an abundant number, since it is smaller than the sum of its proper divisors (19887576).

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

12188424 is a wasteful number, since it uses less digits than its factorization.

12188424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26757 (or 26753 counting only the distinct ones).

The product of its digits is 4096, while the sum is 30.

The square root of 12188424 is about 3491.1923464627. The cubic root of 12188424 is about 230.1349176914.

The spelling of 12188424 in words is "twelve million, one hundred eighty-eight thousand, four hundred twenty-four".