44131131240 has 128 divisors (see below), whose sum is σ = 151910277120. Its totient is φ = 10046880000.

The previous prime is 44131131227. The next prime is 44131131271. The reversal of 44131131240 is 4213113144.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 44131131240.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 106185 + ... + 315495.

It is an arithmetic number, because the mean of its divisors is an integer number (1186799040).

Almost surely, 2^44131131240 is an apocalyptic number.

44131131240 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 44131131240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75955138560).

44131131240 is an abundant number, since it is smaller than the sum of its proper divisors (107779145880).

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

44131131240 is a wasteful number, since it uses less digits than its factorization.

44131131240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209583 (or 209579 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 44131131240 its reverse (4213113144), we get a palindrome (48344244384).

The spelling of 44131131240 in words is "forty-four billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred forty".