4221234 has 40 divisors (see below), whose sum is σ = 9618048. Its totient is φ = 1383480.

The previous prime is 4221229. The next prime is 4221247. The reversal of 4221234 is 4321224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 11319 + ... + 11685.

Almost surely, 2^4221234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4809024).

4221234 is an abundant number, since it is smaller than the sum of its proper divisors (5396814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4221234 is a wasteful number, since it uses less digits than its factorization.

4221234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 443 counting only the distinct ones).

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

The square root of 4221234 is about 2054.5641873643. The cubic root of 4221234 is about 161.6143088088.

Adding to 4221234 its reverse (4321224), we get a palindrome (8542458).

The spelling of 4221234 in words is "four million, two hundred twenty-one thousand, two hundred thirty-four".