16426 has 8 divisors (see below), whose sum is σ = 25344. Its totient is φ = 7980.

The previous prime is 16421. The next prime is 16427. The reversal of 16426 is 62461.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 10 + ... + 181.

It is an arithmetic number, because the mean of its divisors is an integer number (3168).

2¹⁶⁴²⁶ is an apocalyptic number.

16426 is a deficient number, since it is larger than the sum of its proper divisors (8918).

16426 is a wasteful number, since it uses less digits than its factorization.

16426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236.

The product of its digits is 288, while the sum is 19.

The square root of 16426 is about 128.1639574920. The cubic root of 16426 is about 25.4201010618.

Adding to 16426 its reverse (62461), we get a palindrome (78887).

It can be divided in two parts, 164 and 26, that added together give a triangular number (190 = T₁₉).

The spelling of 16426 in words is "sixteen thousand, four hundred twenty-six".