3243431424 has 80 divisors (see below), whose sum is σ = 8679377520. Its totient is φ = 1076305920.

The previous prime is 3243431419. The next prime is 3243431441. The reversal of 3243431424 is 4241343423.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 3243431391 and 3243431400.

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 7 ways as a sum of consecutive naturals, for example, 347134 + ... + 356354.

It is an arithmetic number, because the mean of its divisors is an integer number (108492219).

Almost surely, 2^3243431424 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 3243431424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4339688760).

3243431424 is an abundant number, since it is smaller than the sum of its proper divisors (5435946096).

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

3243431424 is an equidigital number, since it uses as much as digits as its factorization.

3243431424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9471 (or 9455 counting only the distinct ones).

The product of its digits is 27648, while the sum is 30.

The square root of 3243431424 is about 56951.1318939317. The cubic root of 3243431424 is about 1480.2494441985.

Adding to 3243431424 its reverse (4241343423), we get a palindrome (7484774847).

The spelling of 3243431424 in words is "three billion, two hundred forty-three million, four hundred thirty-one thousand, four hundred twenty-four".