12432406 has 16 divisors (see below), whose sum is σ = 22566816. Its totient is φ = 5014656.

The previous prime is 12432391. The next prime is 12432449. The reversal of 12432406 is 60423421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25881 + ... + 26356.

It is an arithmetic number, because the mean of its divisors is an integer number (1410426).

Almost surely, 2^12432406 is an apocalyptic number.

12432406 is a deficient number, since it is larger than the sum of its proper divisors (10134410).

12432406 is a wasteful number, since it uses less digits than its factorization.

12432406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52263.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 12432406 is about 3525.9617127814. The cubic root of 12432406 is about 231.6603606332.

Adding to 12432406 its reverse (60423421), we get a palindrome (72855827).

The spelling of 12432406 in words is "twelve million, four hundred thirty-two thousand, four hundred six".