441324221 has 4 divisors (see below), whose sum is σ = 475272252. Its totient is φ = 407376192.

The previous prime is 441324217. The next prime is 441324223. The reversal of 441324221 is 122423144.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 389628121 = 7190^2 + 19739^2 .

It is a cyclic number.

It is not a de Polignac number, because 441324221 - 2² = 441324217 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441324223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16973996 + ... + 16974021.

It is an arithmetic number, because the mean of its divisors is an integer number (118818063).

Almost surely, 2^441324221 is an apocalyptic number.

It is an amenable number.

441324221 is a deficient number, since it is larger than the sum of its proper divisors (33948031).

441324221 is a wasteful number, since it uses less digits than its factorization.

441324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33948030.

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

The square root of 441324221 is about 21007.7181292971. The cubic root of 441324221 is about 761.3527506201.

Adding to 441324221 its reverse (122423144), we get a palindrome (563747365).

The spelling of 441324221 in words is "four hundred forty-one million, three hundred twenty-four thousand, two hundred twenty-one".