44044640 has 48 divisors (see below), whose sum is σ = 106287552. Its totient is φ = 17240064.

The previous prime is 44044613. The next prime is 44044657. The reversal of 44044640 is 4644044.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4592 + ... + 10448.

It is an arithmetic number, because the mean of its divisors is an integer number (2214324).

Almost surely, 2^44044640 is an apocalyptic number.

44044640 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 44044640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53143776).

44044640 is an abundant number, since it is smaller than the sum of its proper divisors (62242912).

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

44044640 is a wasteful number, since it uses less digits than its factorization.

44044640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5919 (or 5911 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 44044640 is about 6636.6135942964. The cubic root of 44044640 is about 353.1541831417.

Adding to 44044640 its reverse (4644044), we get a palindrome (48688684).

The spelling of 44044640 in words is "forty-four million, forty-four thousand, six hundred forty".