4444121 has 4 divisors (see below), whose sum is σ = 4848144. Its totient is φ = 4040100.

The previous prime is 4444109. The next prime is 4444127. The reversal of 4444121 is 1214444.

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 4444121 - 2¹⁰ = 4443097 is a prime.

It is a super-2 number, since 2×4444121² = 39500422925282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4444093 and 4444102.

It is not an unprimeable number, because it can be changed into a prime (4444127) 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, 201995 + ... + 202016.

It is an arithmetic number, because the mean of its divisors is an integer number (1212036).

Almost surely, 2^4444121 is an apocalyptic number.

It is an amenable number.

4444121 is a deficient number, since it is larger than the sum of its proper divisors (404023).

4444121 is a wasteful number, since it uses less digits than its factorization.

4444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404022.

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

The square root of 4444121 is about 2108.1083937976. The cubic root of 4444121 is about 164.4101497790.

Adding to 4444121 its reverse (1214444), we get a palindrome (5658565).

The spelling of 4444121 in words is "four million, four hundred forty-four thousand, one hundred twenty-one".