42543435 has 64 divisors (see below), whose sum is σ = 81492480. Its totient is φ = 18708480.

The previous prime is 42543433. The next prime is 42543443. The reversal of 42543435 is 53434524.

It is not a de Polignac number, because 42543435 - 2¹ = 42543433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42543433) 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 63 ways as a sum of consecutive naturals, for example, 81084 + ... + 81606.

It is an arithmetic number, because the mean of its divisors is an integer number (1273320).

Almost surely, 2^42543435 is an apocalyptic number.

42543435 is a deficient number, since it is larger than the sum of its proper divisors (38949045).

42543435 is a wasteful number, since it uses less digits than its factorization.

42543435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its digits is 28800, while the sum is 30.

The square root of 42543435 is about 6522.5328669160. The cubic root of 42543435 is about 349.0954465642.

Adding to 42543435 its reverse (53434524), we get a palindrome (95977959).

The spelling of 42543435 in words is "forty-two million, five hundred forty-three thousand, four hundred thirty-five".