43537142240 has 96 divisors (see below), whose sum is σ = 108093696480. Its totient is φ = 16550037504.

The previous prime is 43537142179. The next prime is 43537142249. The reversal of 43537142240 is 4224173534.

It is a self number, because there is not a number n which added to its sum of digits gives 43537142240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43537142249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169046 + ... + 340074.

It is an arithmetic number, because the mean of its divisors is an integer number (1125976005).

Almost surely, 2^43537142240 is an apocalyptic number.

43537142240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43537142240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54046848240).

43537142240 is an abundant number, since it is smaller than the sum of its proper divisors (64556554240).

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

43537142240 is a wasteful number, since it uses less digits than its factorization.

43537142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171124 (or 171116 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 35.

The spelling of 43537142240 in words is "forty-three billion, five hundred thirty-seven million, one hundred forty-two thousand, two hundred forty".