42116872 has 24 divisors (see below), whose sum is σ = 91862910. Its totient is φ = 18049920.

The previous prime is 42116857. The next prime is 42116873. The reversal of 42116872 is 27861124.

It can be written as a sum of positive squares in only one way, i.e., 29964676 + 12152196 = 5474^2 + 3486^2 .

It is not an unprimeable number, because it can be changed into a prime (42116873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53329 + ... + 54112.

Almost surely, 2^42116872 is an apocalyptic number.

It is an amenable number.

42116872 is an abundant number, since it is smaller than the sum of its proper divisors (49746038).

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

42116872 is a wasteful number, since it uses less digits than its factorization.

42116872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107461 (or 107450 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 42116872 is about 6489.7513049423. The cubic root of 42116872 is about 347.9247866695.

Adding to 42116872 its reverse (27861124), we get a palindrome (69977996).

The spelling of 42116872 in words is "forty-two million, one hundred sixteen thousand, eight hundred seventy-two".