16422 has 32 divisors (see below), whose sum is σ = 41472. Its totient is φ = 4224.

The previous prime is 16421. The next prime is 16427. The reversal of 16422 is 22461.

It is a plaindrome in base 9 and base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703 + ... + 725.

It is an arithmetic number, because the mean of its divisors is an integer number (1296).

2¹⁶⁴²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20736).

16422 is an abundant number, since it is smaller than the sum of its proper divisors (25050).

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

16422 is a wasteful number, since it uses less digits than its factorization.

16422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52.

The product of its digits is 96, while the sum is 15.

The square root of 16422 is about 128.1483515306. The cubic root of 16422 is about 25.4180374906.

Adding to 16422 its reverse (22461), we get a palindrome (38883).

The spelling of 16422 in words is "sixteen thousand, four hundred twenty-two".