42116172 has 24 divisors (see below), whose sum is σ = 112310016. Its totient is φ = 12033168.

The previous prime is 42116167. The next prime is 42116189. The reversal of 42116172 is 27161124.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250608 + ... + 250775.

It is an arithmetic number, because the mean of its divisors is an integer number (4679584).

Almost surely, 2^42116172 is an apocalyptic number.

42116172 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

42116172 is an abundant number, since it is smaller than the sum of its proper divisors (70193844).

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

42116172 is a wasteful number, since it uses less digits than its factorization.

42116172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501397 (or 501395 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 42116172 is about 6489.6973735298. The cubic root of 42116172 is about 347.9228591071.

Adding to 42116172 its reverse (27161124), we get a palindrome (69277296).

The spelling of 42116172 in words is "forty-two million, one hundred sixteen thousand, one hundred seventy-two".