441401421 has 8 divisors (see below), whose sum is σ = 589368160. Its totient is φ = 293851152.

The previous prime is 441401419. The next prime is 441401423. The reversal of 441401421 is 124104144.

It is an interprime number because it is at equal distance from previous prime (441401419) and next prime (441401423).

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

It is not a de Polignac number, because 441401421 - 2¹ = 441401419 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 (441401423) 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 7 ways as a sum of consecutive naturals, for example, 101635 + ... + 105888.

It is an arithmetic number, because the mean of its divisors is an integer number (73671020).

Almost surely, 2^441401421 is an apocalyptic number.

It is an amenable number.

441401421 is a deficient number, since it is larger than the sum of its proper divisors (147966739).

441401421 is a wasteful number, since it uses less digits than its factorization.

441401421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208235.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 441401421 is about 21009.5554688813. Note that the first 3 decimals coincide. The cubic root of 441401421 is about 761.3971420242.

Adding to 441401421 its reverse (124104144), we get a palindrome (565505565).

The spelling of 441401421 in words is "four hundred forty-one million, four hundred one thousand, four hundred twenty-one".