12389824 has 56 divisors (see below), whose sum is σ = 27066240. Its totient is φ = 5601024.

The previous prime is 12389803. The next prime is 12389833. The reversal of 12389824 is 42898321.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27747 + ... + 28189.

Almost surely, 2^12389824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12389824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13533120).

12389824 is an abundant number, since it is smaller than the sum of its proper divisors (14676416).

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

12389824 is a wasteful number, since it uses less digits than its factorization.

12389824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497 (or 487 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 12389824 is about 3519.9181808673. The cubic root of 12389824 is about 231.3955729146.

The spelling of 12389824 in words is "twelve million, three hundred eighty-nine thousand, eight hundred twenty-four".