444401321 has 16 divisors (see below), whose sum is σ = 551276544. Its totient is φ = 348836544.

The previous prime is 444401303. The next prime is 444401327. The reversal of 444401321 is 123104444.

It is a happy number.

It is not a de Polignac number, because 444401321 - 2⁶ = 444401257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (444401327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7670 + ... + 30783.

It is an arithmetic number, because the mean of its divisors is an integer number (34454784).

Almost surely, 2^444401321 is an apocalyptic number.

It is an amenable number.

444401321 is a deficient number, since it is larger than the sum of its proper divisors (106875223).

444401321 is a wasteful number, since it uses less digits than its factorization.

444401321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38600.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 444401321 is about 21080.8282806914. The cubic root of 444401321 is about 763.1181455600.

Adding to 444401321 its reverse (123104444), we get a palindrome (567505765).

The spelling of 444401321 in words is "four hundred forty-four million, four hundred one thousand, three hundred twenty-one".