12440132 has 6 divisors (see below), whose sum is σ = 21770238. Its totient is φ = 6220064.

The previous prime is 12440119. The next prime is 12440137. The reversal of 12440132 is 23104421.

12440132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 2353156 = 3176^2 + 1534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12440132.

It is not an unprimeable number, because it can be changed into a prime (12440137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1555013 + ... + 1555020.

It is an arithmetic number, because the mean of its divisors is an integer number (3628373).

Almost surely, 2^12440132 is an apocalyptic number.

It is an amenable number.

12440132 is a deficient number, since it is larger than the sum of its proper divisors (9330106).

12440132 is a wasteful number, since it uses less digits than its factorization.

12440132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3110037 (or 3110035 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 12440132 is about 3527.0571302433. The cubic root of 12440132 is about 231.7083384025.

Adding to 12440132 its reverse (23104421), we get a palindrome (35544553).

The spelling of 12440132 in words is "twelve million, four hundred forty thousand, one hundred thirty-two".