43213236720 has 80 divisors (see below), whose sum is σ = 141011629440. Its totient is φ = 10917027072.

The previous prime is 43213236707. The next prime is 43213236721. The reversal of 43213236720 is 2763231234.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43213236721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4733734 + ... + 4742853.

It is an arithmetic number, because the mean of its divisors is an integer number (1762645368).

Almost surely, 2^43213236720 is an apocalyptic number.

43213236720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43213236720 is an abundant number, since it is smaller than the sum of its proper divisors (97798392720).

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

43213236720 is a wasteful number, since it uses less digits than its factorization.

43213236720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9476622 (or 9476616 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 33.

Adding to 43213236720 its reverse (2763231234), we get a palindrome (45976467954).

The spelling of 43213236720 in words is "forty-three billion, two hundred thirteen million, two hundred thirty-six thousand, seven hundred twenty".