12724336 has 40 divisors (see below), whose sum is σ = 26141184. Its totient is φ = 5987520.

The previous prime is 12724331. The next prime is 12724339. The reversal of 12724336 is 63342721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12724331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25885 + ... + 26371.

Almost surely, 2^12724336 is an apocalyptic number.

12724336 is a gapful number since it is divisible by the number (16) 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 12724336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13070592).

12724336 is an abundant number, since it is smaller than the sum of its proper divisors (13416848).

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

12724336 is a wasteful number, since it uses less digits than its factorization.

12724336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589 (or 583 counting only the distinct ones).

The product of its digits is 6048, while the sum is 28.

The square root of 12724336 is about 3567.1187252459. The cubic root of 12724336 is about 233.4595851901.

The spelling of 12724336 in words is "twelve million, seven hundred twenty-four thousand, three hundred thirty-six".