4224229 has 2 divisors, whose sum is σ = 4224230. Its totient is φ = 4224228.

The previous prime is 4224197. The next prime is 4224247. The reversal of 4224229 is 9224224.

It is a happy number.

4224229 is nontrivially palindromic in base 9.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4008004 + 216225 = 2002^2 + 465^2 .

It is a cyclic number.

It is not a de Polignac number, because 4224229 - 2⁵ = 4224197 is a prime.

It is a super-2 number, since 2×4224229² = 35688221288882, which contains 22 as substring.

4224229 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4224529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112114 + 2112115.

It is an arithmetic number, because the mean of its divisors is an integer number (2112115).

Almost surely, 2^4224229 is an apocalyptic number.

It is an amenable number.

4224229 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224229 is an equidigital number, since it uses as much as digits as its factorization.

4224229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 4224229 is about 2055.2929231620. The cubic root of 4224229 is about 161.6525219967.

The spelling of 4224229 in words is "four million, two hundred twenty-four thousand, two hundred twenty-nine".