441430221 has 16 divisors (see below), whose sum is σ = 601572608. Its totient is φ = 287841600.

The previous prime is 441430193. The next prime is 441430259. The reversal of 441430221 is 122034144.

It is not a de Polignac number, because 441430221 - 2⁵ = 441430189 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 (441430261) 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, 26460 + ... + 39786.

It is an arithmetic number, because the mean of its divisors is an integer number (37598288).

Almost surely, 2^441430221 is an apocalyptic number.

It is an amenable number.

441430221 is a deficient number, since it is larger than the sum of its proper divisors (160142387).

441430221 is a wasteful number, since it uses less digits than its factorization.

441430221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13572.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 441430221 is about 21010.2408601139. The cubic root of 441430221 is about 761.4137012223.

Adding to 441430221 its reverse (122034144), we get a palindrome (563464365).

The spelling of 441430221 in words is "four hundred forty-one million, four hundred thirty thousand, two hundred twenty-one".