44320231332440 has 256 divisors, whose sum is σ = 121688813721600. Its totient is φ = 14181368979456.

The previous prime is 44320231332439. The next prime is 44320231332463. The reversal of 44320231332440 is 4423313202344.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 44320231332440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 312027917 + ... + 312169923.

It is an arithmetic number, because the mean of its divisors is an integer number (475346928600).

Almost surely, 2^{44320231332440} is an apocalyptic number.

44320231332440 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 44320231332440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60844406860800).

44320231332440 is an abundant number, since it is smaller than the sum of its proper divisors (77368582389160).

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

44320231332440 is a wasteful number, since it uses less digits than its factorization.

44320231332440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142594 (or 142590 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 44320231332440 its reverse (4423313202344), we get a palindrome (48743544534784).

The spelling of 44320231332440 in words is "forty-four trillion, three hundred twenty billion, two hundred thirty-one million, three hundred thirty-two thousand, four hundred forty".