43443220020 has 96 divisors (see below), whose sum is σ = 122203804800. Its totient is φ = 11531372544.

The previous prime is 43443220003. The next prime is 43443220021. The reversal of 43443220020 is 2002234434.

It is a super-2 number, since 2×43443220020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43443220021) 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 31 ways as a sum of consecutive naturals, for example, 20795136 + ... + 20797224.

It is an arithmetic number, because the mean of its divisors is an integer number (1272956300).

Almost surely, 2^43443220020 is an apocalyptic number.

It is an amenable number.

43443220020 is an abundant number, since it is smaller than the sum of its proper divisors (78760584780).

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

43443220020 is a wasteful number, since it uses less digits than its factorization.

43443220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3537 (or 3535 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 43443220020 its reverse (2002234434), we get a palindrome (45445454454).

The spelling of 43443220020 in words is "forty-three billion, four hundred forty-three million, two hundred twenty thousand, twenty".