42423142 has 8 divisors (see below), whose sum is σ = 63986832. Its totient is φ = 21094200.

The previous prime is 42423133. The next prime is 42423149. The reversal of 42423142 is 24132424.

It is a happy number.

42423142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423149) 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 in 3 ways as a sum of consecutive naturals, for example, 58234 + ... + 58957.

It is an arithmetic number, because the mean of its divisors is an integer number (7998354).

Almost surely, 2^42423142 is an apocalyptic number.

42423142 is a deficient number, since it is larger than the sum of its proper divisors (21563690).

42423142 is a wasteful number, since it uses less digits than its factorization.

42423142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117374.

The product of its digits is 1536, while the sum is 22.

The square root of 42423142 is about 6513.3049982325. The cubic root of 42423142 is about 348.7661095747.

Adding to 42423142 its reverse (24132424), we get a palindrome (66555566).

The spelling of 42423142 in words is "forty-two million, four hundred twenty-three thousand, one hundred forty-two".