441221401 has 4 divisors (see below), whose sum is σ = 464443600. Its totient is φ = 417999204.

The previous prime is 441221393. The next prime is 441221413. The reversal of 441221401 is 104122144.

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 not a de Polignac number, because 441221401 - 2³ = 441221393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 23222179 = 441221401 / (4 + 4 + 1 + 2 + 2 + 1 + 4 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (441221441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11611071 + ... + 11611108.

It is an arithmetic number, because the mean of its divisors is an integer number (116110900).

Almost surely, 2^441221401 is an apocalyptic number.

It is an amenable number.

441221401 is a deficient number, since it is larger than the sum of its proper divisors (23222199).

441221401 is a wasteful number, since it uses less digits than its factorization.

441221401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23222198.

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 441221401 is about 21005.2707909229. The cubic root of 441221401 is about 761.2936192103.

Adding to 441221401 its reverse (104122144), we get a palindrome (545343545).

The spelling of 441221401 in words is "four hundred forty-one million, two hundred twenty-one thousand, four hundred one".