44272221 has 16 divisors (see below), whose sum is σ = 67920000. Its totient is φ = 25126848.

The previous prime is 44272219. The next prime is 44272253. The reversal of 44272221 is 12227244.

44272221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44272221 - 2¹ = 44272219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44272191 and 44272200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44272211) 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, 3946 + ... + 10203.

It is an arithmetic number, because the mean of its divisors is an integer number (4245000).

Almost surely, 2^44272221 is an apocalyptic number.

It is an amenable number.

44272221 is a deficient number, since it is larger than the sum of its proper divisors (23647779).

44272221 is a wasteful number, since it uses less digits than its factorization.

44272221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14308.

The product of its digits is 1792, while the sum is 24.

The square root of 44272221 is about 6653.7373708315. The cubic root of 44272221 is about 353.7613939984.

Adding to 44272221 its reverse (12227244), we get a palindrome (56499465).

The spelling of 44272221 in words is "forty-four million, two hundred seventy-two thousand, two hundred twenty-one".