12124432 has 20 divisors (see below), whose sum is σ = 24728080. Its totient is φ = 5743008.

The previous prime is 12124423. The next prime is 12124481. The reversal of 12124432 is 23442121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19638 + ... + 20245.

It is an arithmetic number, because the mean of its divisors is an integer number (1236404).

Almost surely, 2^12124432 is an apocalyptic number.

It is an amenable number.

12124432 is an abundant number, since it is smaller than the sum of its proper divisors (12603648).

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

12124432 is a wasteful number, since it uses less digits than its factorization.

12124432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39910 (or 39904 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 12124432 is about 3482.0155082940. The cubic root of 12124432 is about 229.7314572140.

Adding to 12124432 its reverse (23442121), we get a palindrome (35566553).

The spelling of 12124432 in words is "twelve million, one hundred twenty-four thousand, four hundred thirty-two".