441423121 has 4 divisors (see below), whose sum is σ = 441474544. Its totient is φ = 441371700.

The previous prime is 441423119. The next prime is 441423127. The reversal of 441423121 is 121324144.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 441423121 - 2¹ = 441423119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 441423092 and 441423101.

It is not an unprimeable number, because it can be changed into a prime (441423127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9375 + ... + 31156.

It is an arithmetic number, because the mean of its divisors is an integer number (110368636).

Almost surely, 2^441423121 is an apocalyptic number.

It is an amenable number.

441423121 is a deficient number, since it is larger than the sum of its proper divisors (51423).

441423121 is a wasteful number, since it uses less digits than its factorization.

441423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51422.

The product of its digits is 768, while the sum is 22.

The square root of 441423121 is about 21010.0718942130. The cubic root of 441423121 is about 761.4096189869.

Adding to 441423121 its reverse (121324144), we get a palindrome (562747265).

The spelling of 441423121 in words is "four hundred forty-one million, four hundred twenty-three thousand, one hundred twenty-one".