24394 has 4 divisors (see below), whose sum is σ = 36594. Its totient is φ = 12196.

The previous prime is 24391. The next prime is 24407. The reversal of 24394 is 49342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49342 = 2 ⋅24671.

It can be written as a sum of positive squares in only one way, i.e., 18769 + 5625 = 137^2 + 75^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (24391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6097 + ... + 6100.

2²⁴³⁹⁴ is an apocalyptic number.

24394 is a deficient number, since it is larger than the sum of its proper divisors (12200).

24394 is a wasteful number, since it uses less digits than its factorization.

24394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12199.

The product of its digits is 864, while the sum is 22.

The square root of 24394 is about 156.1857868053. The cubic root of 24394 is about 29.0019816323.

The spelling of 24394 in words is "twenty-four thousand, three hundred ninety-four".