24982381 has 2 divisors, whose sum is σ = 24982382. Its totient is φ = 24982380.

The previous prime is 24982343. The next prime is 24982387. The reversal of 24982381 is 18328942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21706281 + 3276100 = 4659^2 + 1810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24982381 is a prime.

It is a super-2 number, since 2×24982381² = 1248238720858322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 24982381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24982387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12491190 + 12491191.

It is an arithmetic number, because the mean of its divisors is an integer number (12491191).

Almost surely, 2^24982381 is an apocalyptic number.

It is an amenable number.

24982381 is a deficient number, since it is larger than the sum of its proper divisors (1).

24982381 is an equidigital number, since it uses as much as digits as its factorization.

24982381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27648, while the sum is 37.

The square root of 24982381 is about 4998.2377894614. The cubic root of 24982381 is about 292.3330666534. Note that the first 3 decimals are identical.

The spelling of 24982381 in words is "twenty-four million, nine hundred eighty-two thousand, three hundred eighty-one".