24423281 has 2 divisors, whose sum is σ = 24423282. Its totient is φ = 24423280.

The previous prime is 24423277. The next prime is 24423299. The reversal of 24423281 is 18232442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12285025 + 12138256 = 3505^2 + 3484^2 .

It is a cyclic number.

It is not a de Polignac number, because 24423281 - 2² = 24423277 is a prime.

It is a super-2 number, since 2×24423281² = 1192993309609922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24423281.

It is not a weakly prime, because it can be changed into another prime (24423881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12211640 + 12211641.

It is an arithmetic number, because the mean of its divisors is an integer number (12211641).

Almost surely, 2^24423281 is an apocalyptic number.

It is an amenable number.

24423281 is a deficient number, since it is larger than the sum of its proper divisors (1).

24423281 is an equidigital number, since it uses as much as digits as its factorization.

24423281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 26.

The square root of 24423281 is about 4941.9916025829. The cubic root of 24423281 is about 290.1358103481.

The spelling of 24423281 in words is "twenty-four million, four hundred twenty-three thousand, two hundred eighty-one".