441005421 has 16 divisors (see below), whose sum is σ = 600068736. Its totient is φ = 287990976.

The previous prime is 441005401. The next prime is 441005431. The reversal of 441005421 is 124500144.

It is a happy number.

It is not a de Polignac number, because 441005421 - 2⁹ = 441004909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441005401) 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, 116271 + ... + 120003.

It is an arithmetic number, because the mean of its divisors is an integer number (37504296).

Almost surely, 2^441005421 is an apocalyptic number.

It is an amenable number.

441005421 is a deficient number, since it is larger than the sum of its proper divisors (159063315).

441005421 is a wasteful number, since it uses less digits than its factorization.

441005421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532.

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

The square root of 441005421 is about 21000.1290710319. The cubic root of 441005421 is about 761.1693799723.

Adding to 441005421 its reverse (124500144), we get a palindrome (565505565).

The spelling of 441005421 in words is "four hundred forty-one million, five thousand, four hundred twenty-one".