42872118 has 32 divisors (see below), whose sum is σ = 88615296. Its totient is φ = 13819008.

The previous prime is 42872117. The next prime is 42872149. The reversal of 42872118 is 81127824.

It is a happy number.

42872118 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26830 + ... + 28382.

It is an arithmetic number, because the mean of its divisors is an integer number (2769228).

Almost surely, 2^42872118 is an apocalyptic number.

42872118 is an abundant number, since it is smaller than the sum of its proper divisors (45743178).

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

42872118 is a wasteful number, since it uses less digits than its factorization.

42872118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1708.

The product of its digits is 7168, while the sum is 33.

The square root of 42872118 is about 6547.6803526134. The cubic root of 42872118 is about 349.9921576474.

The spelling of 42872118 in words is "forty-two million, eight hundred seventy-two thousand, one hundred eighteen".