42031132 has 48 divisors (see below), whose sum is σ = 87085152. Its totient is φ = 17498880.

The previous prime is 42031127. The next prime is 42031139. The reversal of 42031132 is 23113024.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112498 + ... + 112870.

It is an arithmetic number, because the mean of its divisors is an integer number (1814274).

Almost surely, 2^42031132 is an apocalyptic number.

It is an amenable number.

42031132 is an abundant number, since it is smaller than the sum of its proper divisors (45054020).

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

42031132 is a wasteful number, since it uses less digits than its factorization.

42031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 596 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 42031132 is about 6483.1421394259. The cubic root of 42031132 is about 347.6885287225.

Adding to 42031132 its reverse (23113024), we get a palindrome (65144156).

It can be divided in two parts, 4203 and 1132, that added together give a palindrome (5335).

The spelling of 42031132 in words is "forty-two million, thirty-one thousand, one hundred thirty-two".