12129824 has 24 divisors (see below), whose sum is σ = 27292608. Its totient is φ = 5198400.

The previous prime is 12129811. The next prime is 12129829. The reversal of 12129824 is 42892121.

It is not an unprimeable number, because it can be changed into a prime (12129829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26852 + ... + 27299.

It is an arithmetic number, because the mean of its divisors is an integer number (1137192).

Almost surely, 2^12129824 is an apocalyptic number.

12129824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12129824 is an abundant number, since it is smaller than the sum of its proper divisors (15162784).

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

12129824 is an equidigital number, since it uses as much as digits as its factorization.

12129824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54168 (or 54160 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 12129824 is about 3482.7896864439. The cubic root of 12129824 is about 229.7655077008.

The spelling of 12129824 in words is "twelve million, one hundred twenty-nine thousand, eight hundred twenty-four".