3243442420 has 12 divisors (see below), whose sum is σ = 6811229124. Its totient is φ = 1297376960.

The previous prime is 3243442417. The next prime is 3243442421. The reversal of 3243442420 is 242443423.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 943472656 + 2299969764 = 30716^2 + 47958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243442421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81086041 + ... + 81086080.

It is an arithmetic number, because the mean of its divisors is an integer number (567602427).

Almost surely, 2^3243442420 is an apocalyptic number.

It is an amenable number.

3243442420 is an abundant number, since it is smaller than the sum of its proper divisors (3567786704).

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

3243442420 is a wasteful number, since it uses less digits than its factorization.

3243442420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162172130 (or 162172128 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 3243442420 is about 56951.2284327564. The cubic root of 3243442420 is about 1480.2511169952.

Adding to 3243442420 its reverse (242443423), we get a palindrome (3485885843).

The spelling of 3243442420 in words is "three billion, two hundred forty-three million, four hundred forty-two thousand, four hundred twenty".