12432489 has 8 divisors (see below), whose sum is σ = 17297472. Its totient is φ = 7927920.

The previous prime is 12432449. The next prime is 12432493. The reversal of 12432489 is 98423421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12432489 - 2⁹ = 12431977 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 90022 + ... + 90159.

It is an arithmetic number, because the mean of its divisors is an integer number (2162184).

Almost surely, 2^12432489 is an apocalyptic number.

It is an amenable number.

12432489 is a deficient number, since it is larger than the sum of its proper divisors (4864983).

12432489 is a wasteful number, since it uses less digits than its factorization.

12432489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180207.

The product of its digits is 13824, while the sum is 33.

The square root of 12432489 is about 3525.9734826002. The cubic root of 12432489 is about 231.6608761614.

It can be divided in two parts, 12432 and 489, that added together give a palindrome (12921).

The spelling of 12432489 in words is "twelve million, four hundred thirty-two thousand, four hundred eighty-nine".