4342221 has 32 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 2623104.

The previous prime is 4342213. The next prime is 4342229. The reversal of 4342221 is 1222434.

It is an interprime number because it is at equal distance from previous prime (4342213) and next prime (4342229).

It is not a de Polignac number, because 4342221 - 2³ = 4342213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4342194 and 4342203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4342229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31170 + ... + 31308.

It is an arithmetic number, because the mean of its divisors is an integer number (220500).

Almost surely, 2^4342221 is an apocalyptic number.

It is an amenable number.

4342221 is a deficient number, since it is larger than the sum of its proper divisors (2713779).

4342221 is a wasteful number, since it uses less digits than its factorization.

4342221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

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

The square root of 4342221 is about 2083.7996544774. The cubic root of 4342221 is about 163.1438252815.

Adding to 4342221 its reverse (1222434), we get a palindrome (5564655).

It can be divided in two parts, 4 and 342221, that added together give a square (342225 = 585²).

The spelling of 4342221 in words is "four million, three hundred forty-two thousand, two hundred twenty-one".