12403432 has 16 divisors (see below), whose sum is σ = 23428260. Its totient is φ = 6155904.

The previous prime is 12403423. The next prime is 12403439. The reversal of 12403432 is 23430421.

12403432 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 2 ways, for example, as 10929636 + 1473796 = 3306^2 + 1214^2 .

It is not an unprimeable number, because it can be changed into a prime (12403439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4563 + ... + 6754.

Almost surely, 2^12403432 is an apocalyptic number.

It is an amenable number.

12403432 is a deficient number, since it is larger than the sum of its proper divisors (11024828).

12403432 is a wasteful number, since it uses less digits than its factorization.

12403432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11460 (or 11456 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 12403432 is about 3521.8506498715. The cubic root of 12403432 is about 231.4802574334.

Adding to 12403432 its reverse (23430421), we get a palindrome (35833853).

The spelling of 12403432 in words is "twelve million, four hundred three thousand, four hundred thirty-two".