44045540 has 96 divisors (see below), whose sum is σ = 118589184. Its totient is φ = 13340160.

The previous prime is 44045539. The next prime is 44045557. The reversal of 44045540 is 4554044.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56594 + ... + 57366.

It is an arithmetic number, because the mean of its divisors is an integer number (1235304).

Almost surely, 2^44045540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44045540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59294592).

44045540 is an abundant number, since it is smaller than the sum of its proper divisors (74543644).

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

44045540 is a wasteful number, since it uses less digits than its factorization.

44045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 835 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 44045540 is about 6636.6813996153. The cubic root of 44045540 is about 353.1565885543.

Adding to 44045540 its reverse (4554044), we get a palindrome (48599584).

The spelling of 44045540 in words is "forty-four million, forty-five thousand, five hundred forty".