43536 has 20 divisors (see below), whose sum is σ = 112592. Its totient is φ = 14496.

The previous prime is 43517. The next prime is 43541. The reversal of 43536 is 63534.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 6 and base 16.

It is an unprimeable number.

43536 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 406 + ... + 501.

2⁴³⁵³⁶ is an apocalyptic number.

It is an amenable number.

43536 is an abundant number, since it is smaller than the sum of its proper divisors (69056).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56296).

43536 is a wasteful number, since it uses less digits than its factorization.

43536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918 (or 912 counting only the distinct ones).

The product of its digits is 1080, while the sum is 21.

The square root of 43536 is about 208.6528216919. The cubic root of 43536 is about 35.1789474664.

The spelling of 43536 in words is "forty-three thousand, five hundred thirty-six".