43220323220 has 12 divisors (see below), whose sum is σ = 90762678804. Its totient is φ = 17288129280.

The previous prime is 43220323219. The next prime is 43220323291. The reversal of 43220323220 is 2232302234.

It can be written as a sum of positive squares in 2 ways, for example, as 5781169156 + 37439154064 = 76034^2 + 193492^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080508061 + ... + 1080508100.

It is an arithmetic number, because the mean of its divisors is an integer number (7563556567).

Almost surely, 2^43220323220 is an apocalyptic number.

It is an amenable number.

43220323220 is an abundant number, since it is smaller than the sum of its proper divisors (47542355584).

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

43220323220 is a wasteful number, since it uses less digits than its factorization.

43220323220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161016170 (or 2161016168 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 43220323220 its reverse (2232302234), we get a palindrome (45452625454).

The spelling of 43220323220 in words is "forty-three billion, two hundred twenty million, three hundred twenty-three thousand, two hundred twenty".