43031144240 has 120 divisors (see below), whose sum is σ = 118419905760. Its totient is φ = 14244636672.

The previous prime is 43031144213. The next prime is 43031144279. The reversal of 43031144240 is 4244113034.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 425276 + ... + 516644.

It is an arithmetic number, because the mean of its divisors is an integer number (986832548).

Almost surely, 2^43031144240 is an apocalyptic number.

43031144240 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 43031144240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59209952880).

43031144240 is an abundant number, since it is smaller than the sum of its proper divisors (75388761520).

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

43031144240 is a wasteful number, since it uses less digits than its factorization.

43031144240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91447 (or 91412 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 43031144240 its reverse (4244113034), we get a palindrome (47275257274).

The spelling of 43031144240 in words is "forty-three billion, thirty-one million, one hundred forty-four thousand, two hundred forty".