44000000040 has 384 divisors, whose sum is σ = 145474341120. Its totient is φ = 10622177280.

The previous prime is 44000000021. The next prime is 44000000041. The reversal of 44000000040 is 4000000044.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a junction number, because it is equal to n+sod(n) for n = 43999999962 and 44000000025.

It is not an unprimeable number, because it can be changed into a prime (44000000041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 140574924 + ... + 140575236.

It is an arithmetic number, because the mean of its divisors is an integer number (378839430).

Almost surely, 2^44000000040 is an apocalyptic number.

44000000040 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 44000000040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72737170560).

44000000040 is an abundant number, since it is smaller than the sum of its proper divisors (101474341080).

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

44000000040 is a wasteful number, since it uses less digits than its factorization.

44000000040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

Adding to 44000000040 its reverse (4000000044), we get a palindrome (48000000084).

The spelling of 44000000040 in words is "forty-four billion, forty", and thus it is an aban number and an eban number.