42189272 has 32 divisors (see below), whose sum is σ = 84855600. Its totient is φ = 19603584.

The previous prime is 42189271. The next prime is 42189289. The reversal of 42189272 is 27298124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42189271) 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, 5438 + ... + 10674.

Almost surely, 2^42189272 is an apocalyptic number.

It is an amenable number.

42189272 is an abundant number, since it is smaller than the sum of its proper divisors (42666328).

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

42189272 is a wasteful number, since it uses less digits than its factorization.

42189272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315 (or 5311 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 42189272 is about 6495.3269355745. The cubic root of 42189272 is about 348.1240364648.

The spelling of 42189272 in words is "forty-two million, one hundred eighty-nine thousand, two hundred seventy-two".