4434021 has 24 divisors (see below), whose sum is σ = 6761664. Its totient is φ = 2903040.

The previous prime is 4434019. The next prime is 4434041. The reversal of 4434021 is 1204344.

It is not a de Polignac number, because 4434021 - 2¹ = 4434019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4433985 and 4434003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4434041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17125 + ... + 17381.

It is an arithmetic number, because the mean of its divisors is an integer number (281736).

Almost surely, 2^4434021 is an apocalyptic number.

It is an amenable number.

4434021 is a deficient number, since it is larger than the sum of its proper divisors (2327643).

4434021 is an equidigital number, since it uses as much as digits as its factorization.

4434021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4434021 is about 2105.7115187034. The cubic root of 4434021 is about 164.2855055538.

Adding to 4434021 its reverse (1204344), we get a palindrome (5638365).

The spelling of 4434021 in words is "four million, four hundred thirty-four thousand, twenty-one".