4441921 has 16 divisors (see below), whose sum is σ = 5136768. Its totient is φ = 3801600.

The previous prime is 4441919. The next prime is 4441939. The reversal of 4441921 is 1291444.

It is not a de Polignac number, because 4441921 - 2¹ = 4441919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4441621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24451 + ... + 24631.

It is an arithmetic number, because the mean of its divisors is an integer number (321048).

Almost surely, 2^4441921 is an apocalyptic number.

It is an amenable number.

4441921 is a deficient number, since it is larger than the sum of its proper divisors (694847).

4441921 is a wasteful number, since it uses less digits than its factorization.

4441921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its digits is 1152, while the sum is 25.

The square root of 4441921 is about 2107.5865344037. The cubic root of 4441921 is about 164.3830156519.

The spelling of 4441921 in words is "four million, four hundred forty-one thousand, nine hundred twenty-one".