44040040000000 has 640 divisors, whose sum is σ = 121301914466304. Its totient is φ = 15840000000000.

The previous prime is 44040039999821. The next prime is 44040040000009. The reversal of 44040040000000 is 4004044.

It is a tau number, because it is divible by the number of its divisors (640).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (44040040000009) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 44439999505 + ... + 44440000495.

Almost surely, 2^{44040040000000} is an apocalyptic number.

44040040000000 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 44040040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60650957233152).

44040040000000 is an abundant number, since it is smaller than the sum of its proper divisors (77261874466304).

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

44040040000000 is an frugal number, since it uses more digits than its factorization.

44040040000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1156 (or 1110 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

Adding to 44040040000000 its reverse (4004044), we get a palindrome (44040044004044).

The spelling of 44040040000000 in words is "forty-four trillion, forty billion, forty million", and thus it is an aban number and an eban number.