4441421 has 4 divisors (see below), whose sum is σ = 4675200. Its totient is φ = 4207644.

The previous prime is 4441417. The next prime is 4441433. The reversal of 4441421 is 1241444.

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.

It is a cyclic number.

It is not a de Polignac number, because 4441421 - 2² = 4441417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4441393 and 4441402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4441441) 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, 116861 + ... + 116898.

It is an arithmetic number, because the mean of its divisors is an integer number (1168800).

Almost surely, 2^4441421 is an apocalyptic number.

It is an amenable number.

4441421 is a deficient number, since it is larger than the sum of its proper divisors (233779).

4441421 is a wasteful number, since it uses less digits than its factorization.

4441421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233778.

The product of its digits is 512, while the sum is 20.

The square root of 4441421 is about 2107.4679119740. The cubic root of 4441421 is about 164.3768475555.

Adding to 4441421 its reverse (1241444), we get a palindrome (5682865).

The spelling of 4441421 in words is "four million, four hundred forty-one thousand, four hundred twenty-one".