444224121 has 32 divisors (see below), whose sum is σ = 655257600. Its totient is φ = 265462080.

The previous prime is 444224113. The next prime is 444224147. The reversal of 444224121 is 121422444.

It is not a de Polignac number, because 444224121 - 2³ = 444224113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 444224091 and 444224100.

It is not an unprimeable number, because it can be changed into a prime (444224101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927160 + ... + 927638.

It is an arithmetic number, because the mean of its divisors is an integer number (20476800).

Almost surely, 2^444224121 is an apocalyptic number.

It is an amenable number.

444224121 is a deficient number, since it is larger than the sum of its proper divisors (211033479).

444224121 is a wasteful number, since it uses less digits than its factorization.

444224121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its digits is 2048, while the sum is 24.

The square root of 444224121 is about 21076.6249907332. The cubic root of 444224121 is about 763.0167038330.

Adding to 444224121 its reverse (121422444), we get a palindrome (565646565).

The spelling of 444224121 in words is "four hundred forty-four million, two hundred twenty-four thousand, one hundred twenty-one".