42034423 has 2 divisors, whose sum is σ = 42034424. Its totient is φ = 42034422.

The previous prime is 42034417. The next prime is 42034439. The reversal of 42034423 is 32443024.

42034423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42034423 is a prime.

It is a super-3 number, since 3×42034423³ (a number of 24 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42034394 and 42034403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42034453) 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, 21017211 + 21017212.

It is an arithmetic number, because the mean of its divisors is an integer number (21017212).

Almost surely, 2^42034423 is an apocalyptic number.

42034423 is a deficient number, since it is larger than the sum of its proper divisors (1).

42034423 is an equidigital number, since it uses as much as digits as its factorization.

42034423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 42034423 is about 6483.3959465700. The cubic root of 42034423 is about 347.6976030525.

Adding to 42034423 its reverse (32443024), we get a palindrome (74477447).

It can be divided in two parts, 420 and 34423, that added together give a palindrome (34843).

The spelling of 42034423 in words is "forty-two million, thirty-four thousand, four hundred twenty-three".