43236 has 18 divisors (see below), whose sum is σ = 109382. Its totient is φ = 14400.

The previous prime is 43223. The next prime is 43237. The reversal of 43236 is 63234.

It can be written as a sum of positive squares in only one way, i.e., 22500 + 20736 = 150^2 + 144^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a d-powerful number, because it can be written as 4⁵ + 3⁸ + 2¹³ + 3⁹ + 6⁵ .

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 13.

It is a nialpdrome in base 6.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43237) by changing a digit.

43236 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 (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 565 + ... + 636.

2⁴³²³⁶ is an apocalyptic number.

It is an amenable number.

43236 is an abundant number, since it is smaller than the sum of its proper divisors (66146).

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

43236 is a wasteful number, since it uses less digits than its factorization.

43236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1211 (or 1206 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 43236 is about 207.9326814140. The cubic root of 43236 is about 35.0979568782.

It can be divided in two parts, 4 and 3236, that added together give a triangular number (3240 = T₈₀).

The spelling of 43236 in words is "forty-three thousand, two hundred thirty-six".