4404221 has 4 divisors (see below), whose sum is σ = 4523292. Its totient is φ = 4285152.

The previous prime is 4404193. The next prime is 4404251. The reversal of 4404221 is 1224044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3463321 + 940900 = 1861^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 4404221 - 2⁶ = 4404157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4404221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4404251) 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, 59480 + ... + 59553.

It is an arithmetic number, because the mean of its divisors is an integer number (1130823).

Almost surely, 2^4404221 is an apocalyptic number.

It is an amenable number.

4404221 is a deficient number, since it is larger than the sum of its proper divisors (119071).

4404221 is a wasteful number, since it uses less digits than its factorization.

4404221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119070.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 4404221 is about 2098.6235965508. The cubic root of 4404221 is about 163.9166366926.

Adding to 4404221 its reverse (1224044), we get a palindrome (5628265).

The spelling of 4404221 in words is "four million, four hundred four thousand, two hundred twenty-one".