42124112 has 20 divisors (see below), whose sum is σ = 83000640. Its totient is φ = 20704608.

The previous prime is 42124111. The next prime is 42124123. The reversal of 42124112 is 21142124.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42124111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21368 + ... + 23255.

It is an arithmetic number, because the mean of its divisors is an integer number (4150032).

Almost surely, 2^42124112 is an apocalyptic number.

It is an amenable number.

42124112 is a deficient number, since it is larger than the sum of its proper divisors (40876528).

42124112 is a wasteful number, since it uses less digits than its factorization.

42124112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44690 (or 44684 counting only the distinct ones).

The product of its digits is 128, while the sum is 17.

The square root of 42124112 is about 6490.3090835491. The cubic root of 42124112 is about 347.9447219196.

Adding to 42124112 its reverse (21142124), we get a palindrome (63266236).

The spelling of 42124112 in words is "forty-two million, one hundred twenty-four thousand, one hundred twelve".