3240432 has 80 divisors (see below), whose sum is σ = 10034080. Its totient is φ = 995328.

The previous prime is 3240409. The next prime is 3240449. The reversal of 3240432 is 2340423.

3240432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5328 + ... + 5904.

It is an arithmetic number, because the mean of its divisors is an integer number (125426).

Almost surely, 2^3240432 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 3240432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5017040).

3240432 is an abundant number, since it is smaller than the sum of its proper divisors (6793648).

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

3240432 is a wasteful number, since it uses less digits than its factorization.

3240432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607 (or 595 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 3240432 is about 1800.1199960003. The cubic root of 3240432 is about 147.9793007331.

Adding to 3240432 its reverse (2340423), we get a palindrome (5580855).

Subtracting from 3240432 its reverse (2340423), we obtain a palindrome (900009).

The spelling of 3240432 in words is "three million, two hundred forty thousand, four hundred thirty-two".