4221324 has 18 divisors (see below), whose sum is σ = 10670660. Its totient is φ = 1407096.

The previous prime is 4221323. The next prime is 4221337. The reversal of 4221324 is 4231224.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 4⁴ + 2¹² + 2¹⁴ + 1 + 3⁷ + 2²² + 4⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 4221297 and 4221306.

It is not an unprimeable number, because it can be changed into a prime (4221323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58594 + ... + 58665.

Almost surely, 2^4221324 is an apocalyptic number.

It is an amenable number.

4221324 is an abundant number, since it is smaller than the sum of its proper divisors (6449336).

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

4221324 is a wasteful number, since it uses less digits than its factorization.

4221324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117269 (or 117264 counting only the distinct ones).

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

The square root of 4221324 is about 2054.5860897027. The cubic root of 4221324 is about 161.6154573817.

Adding to 4221324 its reverse (4231224), we get a palindrome (8452548).

The spelling of 4221324 in words is "four million, two hundred twenty-one thousand, three hundred twenty-four".