3243623456 has 24 divisors (see below), whose sum is σ = 6721984080. Its totient is φ = 1536452928.

The previous prime is 3243623441. The next prime is 3243623459. The reversal of 3243623456 is 6543263423.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (3243623459) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2666846 + ... + 2668061.

It is an arithmetic number, because the mean of its divisors is an integer number (280082670).

Almost surely, 2^3243623456 is an apocalyptic number.

It is an amenable number.

3243623456 is an abundant number, since it is smaller than the sum of its proper divisors (3478360624).

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

3243623456 is a wasteful number, since it uses less digits than its factorization.

3243623456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5334936 (or 5334928 counting only the distinct ones).

The product of its digits is 311040, while the sum is 38.

The square root of 3243623456 is about 56952.8178056187. The cubic root of 3243623456 is about 1480.2786570510.

Adding to 3243623456 its reverse (6543263423), we get a palindrome (9786886879).

The spelling of 3243623456 in words is "three billion, two hundred forty-three million, six hundred twenty-three thousand, four hundred fifty-six".