4444023121 has 16 divisors (see below), whose sum is σ = 4608299520. Its totient is φ = 4282286400.

The previous prime is 4444023119. The next prime is 4444023137. The reversal of 4444023121 is 1213204444.

It is a cyclic number.

It is not a de Polignac number, because 4444023121 - 2¹ = 4444023119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444023151) 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, 1740796 + ... + 1743346.

It is an arithmetic number, because the mean of its divisors is an integer number (288018720).

Almost surely, 2^4444023121 is an apocalyptic number.

It is an amenable number.

4444023121 is a deficient number, since it is larger than the sum of its proper divisors (164276399).

4444023121 is a wasteful number, since it uses less digits than its factorization.

4444023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3024.

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 4444023121 is about 66663.5066659413. The cubic root of 4444023121 is about 1644.0894275969.

Adding to 4444023121 its reverse (1213204444), we get a palindrome (5657227565).

The spelling of 4444023121 in words is "four billion, four hundred forty-four million, twenty-three thousand, one hundred twenty-one".