44004082640 has 80 divisors (see below), whose sum is σ = 120957079680. Its totient is φ = 14566863360.

The previous prime is 44004082613. The next prime is 44004082643. The reversal of 44004082640 is 4628040044.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 44004082597 and 44004082606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44004082643) 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 15 ways as a sum of consecutive naturals, for example, 1338566 + ... + 1371045.

It is an arithmetic number, because the mean of its divisors is an integer number (1511963496).

Almost surely, 2^44004082640 is an apocalyptic number.

44004082640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44004082640 is an abundant number, since it is smaller than the sum of its proper divisors (76952997040).

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

44004082640 is a wasteful number, since it uses less digits than its factorization.

44004082640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709660 (or 2709654 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

The spelling of 44004082640 in words is "forty-four billion, four million, eighty-two thousand, six hundred forty".