42131372 has 24 divisors (see below), whose sum is σ = 78772176. Its totient is φ = 19647488.

The previous prime is 42131371. The next prime is 42131399. The reversal of 42131372 is 27313124.

It is not an unprimeable number, because it can be changed into a prime (42131371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4943 + ... + 10425.

It is an arithmetic number, because the mean of its divisors is an integer number (3282174).

Almost surely, 2^42131372 is an apocalyptic number.

It is an amenable number.

42131372 is a deficient number, since it is larger than the sum of its proper divisors (36640804).

42131372 is a wasteful number, since it uses less digits than its factorization.

42131372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617 (or 5615 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 42131372 is about 6490.8683548505. The cubic root of 42131372 is about 347.9647099459.

Adding to 42131372 its reverse (27313124), we get a palindrome (69444496).

The spelling of 42131372 in words is "forty-two million, one hundred thirty-one thousand, three hundred seventy-two".