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4422 = 231167

4422 has 16 divisors (see below), whose sum is σ = 9792. Its totient is φ = 1320.

The previous prime is 4421. The next prime is 4423. The reversal of 4422 is 2244.

It is an interprime number because it is at equal distance from previous prime (4421) and next prime (4423).

It is a plaindrome in base 15 and base 16.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 4398 and 4407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33 + ... + 99.

It is an arithmetic number, because the mean of its divisors is an integer number (612).

24422 is an apocalyptic number.

It is a pronic number, being equal to 66×67.

It is a practical number, because each smaller number is the sum of distinct divisors of 4422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4896).

4422 is an abundant number, since it is smaller than the sum of its proper divisors (5370).

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

4422 is a wasteful number, since it uses less digits than its factorization.

4422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83.

The product of its digits is 64, while the sum is 12.

The square root of 4422 is about 66.4981202742. The cubic root of 4422 is about 16.4136907292.

Adding to 4422 its reverse (2244), we get a palindrome (6666).

It can be divided in two parts, 442 and 2, that added together give a palindrome (444).

The spelling of 4422 in words is "four thousand, four hundred twenty-two", and thus it is an iban number.

Divisors: 1 2 3 6 11 22 33 66 67 134 201 402 737 1474 2211 4422