43240440032 has 24 divisors (see below), whose sum is σ = 90137241936. Its totient is φ = 20348442112.

The previous prime is 43240440029. The next prime is 43240440043. The reversal of 43240440032 is 23004404234.

It is a super-2 number, since 2×43240440032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 43240439983 and 43240440010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39742508 + ... + 39743595.

It is an arithmetic number, because the mean of its divisors is an integer number (3755718414).

Almost surely, 2^43240440032 is an apocalyptic number.

It is an amenable number.

43240440032 is an abundant number, since it is smaller than the sum of its proper divisors (46896801904).

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

43240440032 is a wasteful number, since it uses less digits than its factorization.

43240440032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79486130 (or 79486122 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 43240440032 its reverse (23004404234), we get a palindrome (66244844266).

The spelling of 43240440032 in words is "forty-three billion, two hundred forty million, four hundred forty thousand, thirty-two".