42536423 has 4 divisors (see below), whose sum is σ = 42564408. Its totient is φ = 42508440.

The previous prime is 42536381. The next prime is 42536441. The reversal of 42536423 is 32463524.

42536423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42536423 - 2¹⁰ = 42535399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42538423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11573 + ... + 14798.

It is an arithmetic number, because the mean of its divisors is an integer number (10641102).

Almost surely, 2^42536423 is an apocalyptic number.

42536423 is a deficient number, since it is larger than the sum of its proper divisors (27985).

42536423 is a wasteful number, since it uses less digits than its factorization.

42536423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27984.

The product of its digits is 17280, while the sum is 29.

The square root of 42536423 is about 6521.9953235187. The cubic root of 42536423 is about 349.0762662311.

Adding to 42536423 its reverse (32463524), we get a palindrome (74999947).

The spelling of 42536423 in words is "forty-two million, five hundred thirty-six thousand, four hundred twenty-three".