441534221 has 4 divisors (see below), whose sum is σ = 448124352. Its totient is φ = 434944092.

The previous prime is 441534211. The next prime is 441534241. The reversal of 441534221 is 122435144.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-441534221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441534211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3294965 + ... + 3295098.

It is an arithmetic number, because the mean of its divisors is an integer number (112031088).

Almost surely, 2^441534221 is an apocalyptic number.

It is an amenable number.

441534221 is a deficient number, since it is larger than the sum of its proper divisors (6590131).

441534221 is an equidigital number, since it uses as much as digits as its factorization.

441534221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590130.

The product of its digits is 3840, while the sum is 26.

The square root of 441534221 is about 21012.7156978816. The cubic root of 441534221 is about 761.4734923310.

Adding to 441534221 its reverse (122435144), we get a palindrome (563969365).

The spelling of 441534221 in words is "four hundred forty-one million, five hundred thirty-four thousand, two hundred twenty-one".