441421421 has 8 divisors (see below), whose sum is σ = 513032640. Its totient is φ = 371947968.

The previous prime is 441421411. The next prime is 441421423. The reversal of 441421421 is 124124144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 441421421 - 2²² = 437227117 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 (441421423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533996 + ... + 534821.

It is an arithmetic number, because the mean of its divisors is an integer number (64129080).

Almost surely, 2^441421421 is an apocalyptic number.

It is an amenable number.

441421421 is a deficient number, since it is larger than the sum of its proper divisors (71611219).

441421421 is a wasteful number, since it uses less digits than its factorization.

441421421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068883.

The product of its digits is 1024, while the sum is 23.

The square root of 441421421 is about 21010.0314373872. The cubic root of 441421421 is about 761.4086415437.

Adding to 441421421 its reverse (124124144), we get a palindrome (565545565).

The spelling of 441421421 in words is "four hundred forty-one million, four hundred twenty-one thousand, four hundred twenty-one".