44421718 has 16 divisors (see below), whose sum is σ = 73716480. Its totient is φ = 19906600.

The previous prime is 44421691. The next prime is 44421733. The reversal of 44421718 is 81712444.

It is a happy number.

44421718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 44421718.

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 7 ways as a sum of consecutive naturals, for example, 12658 + ... + 15781.

It is an arithmetic number, because the mean of its divisors is an integer number (4607280).

Almost surely, 2^44421718 is an apocalyptic number.

44421718 is a deficient number, since it is larger than the sum of its proper divisors (29294762).

44421718 is a wasteful number, since it uses less digits than its factorization.

44421718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28523.

The product of its digits is 7168, while the sum is 31.

The square root of 44421718 is about 6664.9619653828. The cubic root of 44421718 is about 354.1591366396.

The spelling of 44421718 in words is "forty-four million, four hundred twenty-one thousand, seven hundred eighteen".