42244823 has 2 divisors, whose sum is σ = 42244824. Its totient is φ = 42244822.

The previous prime is 42244799. The next prime is 42244843. The reversal of 42244823 is 32844224.

It is a happy number.

42244823 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42244823 - 2¹² = 42240727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42244843) 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 as a sum of consecutive naturals, namely, 21122411 + 21122412.

It is an arithmetic number, because the mean of its divisors is an integer number (21122412).

Almost surely, 2^42244823 is an apocalyptic number.

42244823 is a deficient number, since it is larger than the sum of its proper divisors (1).

42244823 is an equidigital number, since it uses as much as digits as its factorization.

42244823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 29.

The square root of 42244823 is about 6499.6017570310. The cubic root of 42244823 is about 348.2767621527.

The spelling of 42244823 in words is "forty-two million, two hundred forty-four thousand, eight hundred twenty-three".