444023121 has 8 divisors (see below), whose sum is σ = 592678720. Its totient is φ = 295691472.

The previous prime is 444023093. The next prime is 444023159. The reversal of 444023121 is 121320444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 444023121 - 2¹³ = 444014929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444023821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77770 + ... + 83283.

It is an arithmetic number, because the mean of its divisors is an integer number (74084840).

Almost surely, 2^444023121 is an apocalyptic number.

It is an amenable number.

444023121 is a deficient number, since it is larger than the sum of its proper divisors (148655599).

444023121 is a wasteful number, since it uses less digits than its factorization.

444023121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161975.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 444023121 is about 21071.8561356137. The cubic root of 444023121 is about 762.9016046541.

Adding to 444023121 its reverse (121320444), we get a palindrome (565343565).

The spelling of 444023121 in words is "four hundred forty-four million, twenty-three thousand, one hundred twenty-one".