444500121 has 8 divisors (see below), whose sum is σ = 638256640. Its totient is φ = 273538512.

The previous prime is 444500101. The next prime is 444500123. The reversal of 444500121 is 121005444.

It is a happy number.

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

It is not a de Polignac number, because 444500121 - 2¹¹ = 444498073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (444500123) 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, 5698681 + ... + 5698758.

It is an arithmetic number, because the mean of its divisors is an integer number (79782080).

Almost surely, 2^444500121 is an apocalyptic number.

It is an amenable number.

444500121 is a deficient number, since it is larger than the sum of its proper divisors (193756519).

444500121 is a wasteful number, since it uses less digits than its factorization.

444500121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11397455.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 444500121 is about 21083.1715118955. The cubic root of 444500121 is about 763.1746939114.

Adding to 444500121 its reverse (121005444), we get a palindrome (565505565).

The spelling of 444500121 in words is "four hundred forty-four million, five hundred thousand, one hundred twenty-one".