23444381 has 2 divisors, whose sum is σ = 23444382. Its totient is φ = 23444380.

The previous prime is 23444363. The next prime is 23444419. The reversal of 23444381 is 18344432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16736281 + 6708100 = 4091^2 + 2590^2 .

It is a cyclic number.

It is not a de Polignac number, because 23444381 - 2¹⁴ = 23427997 is a prime.

It is a super-2 number, since 2×23444381² = 1099278000946322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23444321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11722190 + 11722191.

It is an arithmetic number, because the mean of its divisors is an integer number (11722191).

Almost surely, 2^23444381 is an apocalyptic number.

It is an amenable number.

23444381 is a deficient number, since it is larger than the sum of its proper divisors (1).

23444381 is an equidigital number, since it uses as much as digits as its factorization.

23444381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 29.

The square root of 23444381 is about 4841.9397972300. The cubic root of 23444381 is about 286.2065642223.

The spelling of 23444381 in words is "twenty-three million, four hundred forty-four thousand, three hundred eighty-one".