12723232 has 48 divisors (see below), whose sum is σ = 26671680. Its totient is φ = 5961472.

The previous prime is 12723223. The next prime is 12723239. The reversal of 12723232 is 23232721.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (12723239) 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, 43278 + ... + 43570.

It is an arithmetic number, because the mean of its divisors is an integer number (555660).

Almost surely, 2^12723232 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 12723232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13335840).

12723232 is an abundant number, since it is smaller than the sum of its proper divisors (13948448).

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

12723232 is a wasteful number, since it uses less digits than its factorization.

12723232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 377 counting only the distinct ones).

The product of its digits is 1008, while the sum is 22.

The square root of 12723232 is about 3566.9639751475. The cubic root of 12723232 is about 233.4528331198.

Adding to 12723232 its reverse (23232721), we get a palindrome (35955953).

The spelling of 12723232 in words is "twelve million, seven hundred twenty-three thousand, two hundred thirty-two".