4429221 has 4 divisors (see below), whose sum is σ = 5905632. Its totient is φ = 2952812.

The previous prime is 4429213. The next prime is 4429237. The reversal of 4429221 is 1229244.

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 4429221 - 2³ = 4429213 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 4429191 and 4429200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4429211) 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, 738201 + ... + 738206.

It is an arithmetic number, because the mean of its divisors is an integer number (1476408).

Almost surely, 2^4429221 is an apocalyptic number.

It is an amenable number.

4429221 is a deficient number, since it is larger than the sum of its proper divisors (1476411).

4429221 is a wasteful number, since it uses less digits than its factorization.

4429221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476410.

The product of its digits is 1152, while the sum is 24.

The square root of 4429221 is about 2104.5714528141. The cubic root of 4429221 is about 164.2262023351.

The spelling of 4429221 in words is "four million, four hundred twenty-nine thousand, two hundred twenty-one".