42872112 has 40 divisors (see below), whose sum is σ = 123060080. Its totient is φ = 14290560.

The previous prime is 42872099. The next prime is 42872117. The reversal of 42872112 is 21127824.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (42872117) 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 7 ways as a sum of consecutive naturals, for example, 49189 + ... + 50052.

It is an arithmetic number, because the mean of its divisors is an integer number (3076502).

Almost surely, 2^42872112 is an apocalyptic number.

It is an amenable number.

42872112 is an abundant number, since it is smaller than the sum of its proper divisors (80187968).

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

42872112 is a wasteful number, since it uses less digits than its factorization.

42872112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99258 (or 99246 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 42872112 is about 6547.6798944359. The cubic root of 42872112 is about 349.9921413201.

Adding to 42872112 its reverse (21127824), we get a palindrome (63999936).

The spelling of 42872112 in words is "forty-two million, eight hundred seventy-two thousand, one hundred twelve".