44856721 has 16 divisors (see below), whose sum is σ = 56992768. Its totient is φ = 34344000.

The previous prime is 44856719. The next prime is 44856731. The reversal of 44856721 is 12765844.

44856721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 44856721 - 2¹ = 44856719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44856731) by changing a digit.

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, 5130 + ... + 10771.

It is an arithmetic number, because the mean of its divisors is an integer number (3562048).

Almost surely, 2^44856721 is an apocalyptic number.

It is an amenable number.

44856721 is a deficient number, since it is larger than the sum of its proper divisors (12136047).

44856721 is a wasteful number, since it uses less digits than its factorization.

44856721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15952.

The product of its digits is 53760, while the sum is 37.

The square root of 44856721 is about 6697.5160320823. The cubic root of 44856721 is about 355.3114267778.

The spelling of 44856721 in words is "forty-four million, eight hundred fifty-six thousand, seven hundred twenty-one".