4221238 has 16 divisors (see below), whose sum is σ = 7374240. Its totient is φ = 1774656.

The previous prime is 4221229. The next prime is 4221247. The reversal of 4221238 is 8321224.

It is an interprime number because it is at equal distance from previous prime (4221229) and next prime (4221247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103 + ... + 3586.

It is an arithmetic number, because the mean of its divisors is an integer number (460890).

Almost surely, 2^4221238 is an apocalyptic number.

4221238 is a deficient number, since it is larger than the sum of its proper divisors (3153002).

4221238 is a wasteful number, since it uses less digits than its factorization.

4221238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5751.

The product of its digits is 768, while the sum is 22.

The square root of 4221238 is about 2054.5651608065. The cubic root of 4221238 is about 161.6143598568.

The spelling of 4221238 in words is "four million, two hundred twenty-one thousand, two hundred thirty-eight".