42344231 has 2 divisors, whose sum is σ = 42344232. Its totient is φ = 42344230.

The previous prime is 42344189. The next prime is 42344251. The reversal of 42344231 is 13244324.

42344231 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 42344231 - 2¹⁴ = 42327847 is a prime.

It is a super-2 number, since 2×42344231² = 3586067797962722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42344197 and 42344206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42344251) 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, 21172115 + 21172116.

It is an arithmetic number, because the mean of its divisors is an integer number (21172116).

Almost surely, 2^42344231 is an apocalyptic number.

42344231 is a deficient number, since it is larger than the sum of its proper divisors (1).

42344231 is an equidigital number, since it uses as much as digits as its factorization.

42344231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 42344231 is about 6507.2445013231. The cubic root of 42344231 is about 348.5497295283.

Adding to 42344231 its reverse (13244324), we get a palindrome (55588555).

The spelling of 42344231 in words is "forty-two million, three hundred forty-four thousand, two hundred thirty-one".