44072540 has 48 divisors (see below), whose sum is σ = 96272064. Its totient is φ = 16934400.

The previous prime is 44072537. The next prime is 44072557. The reversal of 44072540 is 4527044.

44072540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57842 + ... + 58598.

It is an arithmetic number, because the mean of its divisors is an integer number (2005668).

Almost surely, 2^44072540 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 44072540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48136032).

44072540 is an abundant number, since it is smaller than the sum of its proper divisors (52199524).

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

44072540 is a wasteful number, since it uses less digits than its factorization.

44072540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 44072540 is about 6638.7152371524. The cubic root of 44072540 is about 353.2287357016.

Adding to 44072540 its reverse (4527044), we get a palindrome (48599584).

The spelling of 44072540 in words is "forty-four million, seventy-two thousand, five hundred forty".