12732444 has 48 divisors (see below), whose sum is σ = 34083840. Its totient is φ = 4106160.

The previous prime is 12732443. The next prime is 12732457. The reversal of 12732444 is 44423721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12732443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1447 + ... + 5249.

It is an arithmetic number, because the mean of its divisors is an integer number (710080).

Almost surely, 2^12732444 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 12732444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17041920).

12732444 is an abundant number, since it is smaller than the sum of its proper divisors (21351396).

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

12732444 is a wasteful number, since it uses less digits than its factorization.

12732444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847 (or 3839 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 12732444 is about 3568.2550357282. The cubic root of 12732444 is about 233.5091618021.

The spelling of 12732444 in words is "twelve million, seven hundred thirty-two thousand, four hundred forty-four".