42535636 has 24 divisors (see below), whose sum is σ = 87452064. Its totient is φ = 17846880.

The previous prime is 42535631. The next prime is 42535639. The reversal of 42535636 is 63653524.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42535631) 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, 36610 + ... + 37753.

It is an arithmetic number, because the mean of its divisors is an integer number (3643836).

Almost surely, 2^42535636 is an apocalyptic number.

It is an amenable number.

42535636 is an abundant number, since it is smaller than the sum of its proper divisors (44916428).

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

42535636 is a wasteful number, since it uses less digits than its factorization.

42535636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74391 (or 74389 counting only the distinct ones).

The product of its digits is 64800, while the sum is 34.

The square root of 42535636 is about 6521.9349889431. The cubic root of 42535636 is about 349.0741133725.

It can be divided in two parts, 4253 and 5636, that added together give a palindrome (9889).

The spelling of 42535636 in words is "forty-two million, five hundred thirty-five thousand, six hundred thirty-six".