24489 has 8 divisors (see below), whose sum is σ = 36320. Its totient is φ = 16308.

The previous prime is 24481. The next prime is 24499. The reversal of 24489 is 98442.

It is not a de Polignac number, because 24489 - 2³ = 24481 is a prime.

It is a super-2 number, since 2×24489² = 1199422242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 907 = 24489 / (2 + 4 + 4 + 8 + 9).

It is a d-powerful number, because it can be written as 2⁹ + 4⁵ + 4⁷ + 8 + 9⁴ .

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (24481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 427 + ... + 480.

It is an arithmetic number, because the mean of its divisors is an integer number (4540).

2²⁴⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

24489 is a deficient number, since it is larger than the sum of its proper divisors (11831).

24489 is an equidigital number, since it uses as much as digits as its factorization.

24489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916 (or 910 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 24489 is about 156.4896162689. The cubic root of 24489 is about 29.0395813067.

It can be divided in two parts, 244 and 89, that added together give a palindrome (333).

The spelling of 24489 in words is "twenty-four thousand, four hundred eighty-nine".