24138489 has 8 divisors (see below), whose sum is σ = 32290720. Its totient is φ = 16039296.

The previous prime is 24138481. The next prime is 24138497. The reversal of 24138489 is 98483142.

It is an interprime number because it is at equal distance from previous prime (24138481) and next prime (24138497).

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

It is not a de Polignac number, because 24138489 - 2³ = 24138481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24138481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12184 + ... + 14025.

It is an arithmetic number, because the mean of its divisors is an integer number (4036340).

Almost surely, 2^24138489 is an apocalyptic number.

It is an amenable number.

24138489 is a deficient number, since it is larger than the sum of its proper divisors (8152231).

24138489 is a wasteful number, since it uses less digits than its factorization.

24138489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26519.

The product of its digits is 55296, while the sum is 39.

The square root of 24138489 is about 4913.0936282550. The cubic root of 24138489 is about 289.0036716846.

The spelling of 24138489 in words is "twenty-four million, one hundred thirty-eight thousand, four hundred eighty-nine".