42423112 has 16 divisors (see below), whose sum is σ = 81393840. Its totient is φ = 20718096.

The previous prime is 42423107. The next prime is 42423113. The reversal of 42423112 is 21132424.

It is a self number, because there is not a number n which added to its sum of digits gives 42423112.

It is not an unprimeable number, because it can be changed into a prime (42423113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61318 + ... + 62005.

It is an arithmetic number, because the mean of its divisors is an integer number (5087115).

Almost surely, 2^42423112 is an apocalyptic number.

It is an amenable number.

42423112 is a deficient number, since it is larger than the sum of its proper divisors (38970728).

42423112 is a wasteful number, since it uses less digits than its factorization.

42423112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123372 (or 123368 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 42423112 is about 6513.3026952538. The cubic root of 42423112 is about 348.7660273634.

Adding to 42423112 its reverse (21132424), we get a palindrome (63555536).

The spelling of 42423112 in words is "forty-two million, four hundred twenty-three thousand, one hundred twelve".