12432429 has 6 divisors (see below), whose sum is σ = 17957966. Its totient is φ = 8288280.

The previous prime is 12432391. The next prime is 12432449. The reversal of 12432429 is 92423421.

12432429 is digitally balanced in base 3, 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., 10227204 + 2205225 = 3198^2 + 1485^2 .

It is not a de Polignac number, because 12432429 - 2²³ = 4043821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 690682 + ... + 690699.

Almost surely, 2^12432429 is an apocalyptic number.

It is an amenable number.

12432429 is a deficient number, since it is larger than the sum of its proper divisors (5525537).

12432429 is a wasteful number, since it uses less digits than its factorization.

12432429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381387 (or 1381384 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 12432429 is about 3525.9649743014. The cubic root of 12432429 is about 231.6605034907.

The spelling of 12432429 in words is "twelve million, four hundred thirty-two thousand, four hundred twenty-nine".