23442427 has 2 divisors, whose sum is σ = 23442428. Its totient is φ = 23442426.

The previous prime is 23442407. The next prime is 23442431. The reversal of 23442427 is 72424432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23442427 - 2⁷ = 23442299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23442395 and 23442404.

It is not a weakly prime, because it can be changed into another prime (23442407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721213 + 11721214.

It is an arithmetic number, because the mean of its divisors is an integer number (11721214).

Almost surely, 2^23442427 is an apocalyptic number.

23442427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23442427 is an equidigital number, since it uses as much as digits as its factorization.

23442427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 28.

The square root of 23442427 is about 4841.7380143911. The cubic root of 23442427 is about 286.1986125918.

Adding to 23442427 its reverse (72424432), we get a palindrome (95866859).

The spelling of 23442427 in words is "twenty-three million, four hundred forty-two thousand, four hundred twenty-seven".