43113444040 has 32 divisors (see below), whose sum is σ = 99069194880. Its totient is φ = 16878453952.

The previous prime is 43113443987. The next prime is 43113444061. The reversal of 43113444040 is 4044431134.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11464462 + ... + 11468221.

It is an arithmetic number, because the mean of its divisors is an integer number (3095912340).

Almost surely, 2^43113444040 is an apocalyptic number.

43113444040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43113444040 is an abundant number, since it is smaller than the sum of its proper divisors (55955750840).

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

43113444040 is a wasteful number, since it uses less digits than its factorization.

43113444040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22932741 (or 22932737 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 43113444040 its reverse (4044431134), we get a palindrome (47157875174).

The spelling of 43113444040 in words is "forty-three billion, one hundred thirteen million, four hundred forty-four thousand, forty".