24426 has 24 divisors (see below), whose sum is σ = 56160. Its totient is φ = 7656.

The previous prime is 24421. The next prime is 24439. The reversal of 24426 is 62442.

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

It is a d-powerful number, because it can be written as 2 + 4⁴ + 4⁷ + 2³ + 6⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 24399 and 24408.

It is not an unprimeable number, because it can be changed into a prime (24421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385 + ... + 443.

It is an arithmetic number, because the mean of its divisors is an integer number (2340).

2²⁴⁴²⁶ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24426, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28080).

24426 is an abundant number, since it is smaller than the sum of its proper divisors (31734).

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

24426 is a wasteful number, since it uses less digits than its factorization.

24426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90 (or 87 counting only the distinct ones).

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

The square root of 24426 is about 156.2881953316. The cubic root of 24426 is about 29.0146576715.

Subtracting from 24426 its product of digits (384), we obtain a palindrome (24042).

Adding to 24426 its reverse (62442), we get a palindrome (86868).

The spelling of 24426 in words is "twenty-four thousand, four hundred twenty-six".