43040240143232 has 64 divisors (see below), whose sum is σ = 87223843440000. Its totient is φ = 21148985937408.

The previous prime is 43040240143231. The next prime is 43040240143279. The reversal of 43040240143232 is 23234104204034.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43040240143231) 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 7 ways as a sum of consecutive naturals, for example, 24206519 + ... + 25923657.

It is an arithmetic number, because the mean of its divisors is an integer number (1362872553750).

Almost surely, 2^{43040240143232} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43040240143232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43611921720000).

43040240143232 is an abundant number, since it is smaller than the sum of its proper divisors (44183603296768).

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

43040240143232 is a wasteful number, since it uses less digits than its factorization.

43040240143232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720531 (or 1720519 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 43040240143232 its reverse (23234104204034), we get a palindrome (66274344347266).

The spelling of 43040240143232 in words is "forty-three trillion, forty billion, two hundred forty million, one hundred forty-three thousand, two hundred thirty-two".