42020112 has 20 divisors (see below), whose sum is σ = 108552080. Its totient is φ = 14006688.

The previous prime is 42020093. The next prime is 42020131. The reversal of 42020112 is 21102024.

It is an interprime number because it is at equal distance from previous prime (42020093) and next prime (42020131).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437662 + ... + 437757.

It is an arithmetic number, because the mean of its divisors is an integer number (5427604).

Almost surely, 2^42020112 is an apocalyptic number.

It is an amenable number.

42020112 is an abundant number, since it is smaller than the sum of its proper divisors (66531968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42020112 is a wasteful number, since it uses less digits than its factorization.

42020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875430 (or 875424 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 42020112 is about 6482.2921871819. The cubic root of 42020112 is about 347.6581396410.

Adding to 42020112 its reverse (21102024), we get a palindrome (63122136).

The spelling of 42020112 in words is "forty-two million, twenty thousand, one hundred twelve".