44000040440 has 32 divisors (see below), whose sum is σ = 100356263280. Its totient is φ = 17358918912.

The previous prime is 44000040439. The next prime is 44000040443. The reversal of 44000040440 is 4404000044.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44000040443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7531334 + ... + 7537173.

Almost surely, 2^44000040440 is an apocalyptic number.

44000040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44000040440 is an abundant number, since it is smaller than the sum of its proper divisors (56356222840).

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

44000040440 is a wasteful number, since it uses less digits than its factorization.

44000040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15068591 (or 15068587 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 44000040440 its reverse (4404000044), we get a palindrome (48404040484).

The spelling of 44000040440 in words is "forty-four billion, forty thousand, four hundred forty".