42135232 has 28 divisors (see below), whose sum is σ = 83831176. Its totient is φ = 21012480.

The previous prime is 42135211. The next prime is 42135239. The reversal of 42135232 is 23253124.

It is not an unprimeable number, because it can be changed into a prime (42135239) 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 3 ways as a sum of consecutive naturals, for example, 35968 + ... + 37120.

Almost surely, 2^42135232 is an apocalyptic number.

It is an amenable number.

42135232 is a deficient number, since it is larger than the sum of its proper divisors (41695944).

42135232 is a wasteful number, since it uses less digits than its factorization.

42135232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736 (or 1726 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 42135232 is about 6491.1656888420. The cubic root of 42135232 is about 347.9753362535.

Adding to 42135232 its reverse (23253124), we get a palindrome (65388356).

It can be divided in two parts, 421 and 35232, that added together give a palindrome (35653).

The spelling of 42135232 in words is "forty-two million, one hundred thirty-five thousand, two hundred thirty-two".