44121321 has 16 divisors (see below), whose sum is σ = 66475200. Its totient is φ = 28914624.

The previous prime is 44121313. The next prime is 44121359. The reversal of 44121321 is 12312144.

44121321 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 44121321 - 2³ = 44121313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44121294 and 44121303.

It is not an unprimeable number, because it can be changed into a prime (44121821) 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, 12256 + ... + 15441.

It is an arithmetic number, because the mean of its divisors is an integer number (4154700).

Almost surely, 2^44121321 is an apocalyptic number.

It is an amenable number.

44121321 is a deficient number, since it is larger than the sum of its proper divisors (22353879).

44121321 is a wasteful number, since it uses less digits than its factorization.

44121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27765 (or 27759 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 44121321 is about 6642.3882000377. The cubic root of 44121321 is about 353.3590095458.

Adding to 44121321 its reverse (12312144), we get a palindrome (56433465).

The spelling of 44121321 in words is "forty-four million, one hundred twenty-one thousand, three hundred twenty-one".