3243424340 has 72 divisors (see below), whose sum is σ = 7396914168. Its totient is φ = 1194086400.

The previous prime is 3243424313. The next prime is 3243424357. The reversal of 3243424340 is 434243423.

It can be written as a sum of positive squares in 12 ways, for example, as 1772241604 + 1471182736 = 42098^2 + 38356^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1354184 + ... + 1356576.

It is an arithmetic number, because the mean of its divisors is an integer number (102734919).

Almost surely, 2^3243424340 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 3243424340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3698457084).

3243424340 is an abundant number, since it is smaller than the sum of its proper divisors (4153489828).

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

3243424340 is a wasteful number, since it uses less digits than its factorization.

3243424340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2814 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 29.

The square root of 3243424340 is about 56951.0697002260. The cubic root of 3243424340 is about 1480.2483665235.

Adding to 3243424340 its reverse (434243423), we get a palindrome (3677667763).

The spelling of 3243424340 in words is "three billion, two hundred forty-three million, four hundred twenty-four thousand, three hundred forty".