44044444880 has 80 divisors (see below), whose sum is σ = 105508712784. Its totient is φ = 17091440640.

The previous prime is 44044444879. The next prime is 44044444919. The reversal of 44044444880 is 8844444044.

It can be written as a sum of positive squares in 8 ways, for example, as 14069755456 + 29974689424 = 118616^2 + 173132^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294422 + ... + 418058.

Almost surely, 2^44044444880 is an apocalyptic number.

44044444880 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 44044444880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52754356392).

44044444880 is an abundant number, since it is smaller than the sum of its proper divisors (61464267904).

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

44044444880 is a wasteful number, since it uses less digits than its factorization.

44044444880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123784 (or 123778 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 44.

The spelling of 44044444880 in words is "forty-four billion, forty-four million, four hundred forty-four thousand, eight hundred eighty".