12432992 has 108 divisors (see below), whose sum is σ = 30667140. Its totient is φ = 4942080.

The previous prime is 12432971. The next prime is 12432997. The reversal of 12432992 is 29923421.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432997) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 654359 + ... + 654377.

It is an arithmetic number, because the mean of its divisors is an integer number (283955).

Almost surely, 2^12432992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12432992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15333570).

12432992 is an abundant number, since it is smaller than the sum of its proper divisors (18234148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12432992 is a wasteful number, since it uses less digits than its factorization.

12432992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77 (or 45 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 12432992 is about 3526.0448096983. The cubic root of 12432992 is about 231.6640003374.

It can be divided in two parts, 124329 and 92, that added together give a palindrome (124421).

The spelling of 12432992 in words is "twelve million, four hundred thirty-two thousand, nine hundred ninety-two".