40236 has 24 divisors (see below), whose sum is σ = 107520. Its totient is φ = 11472.

The previous prime is 40231. The next prime is 40237. The reversal of 40236 is 63204.

40236 = T₃₉ + T₄₀ + ... + T₆₆.

40236 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40231) 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, 156 + ... + 323.

It is an arithmetic number, because the mean of its divisors is an integer number (4480).

2⁴⁰²³⁶ is an apocalyptic number.

It is an amenable number.

40236 is an abundant number, since it is smaller than the sum of its proper divisors (67284).

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 (53760).

40236 is a wasteful number, since it uses less digits than its factorization.

40236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 40236 is about 200.5891323078. The cubic root of 40236 is about 34.2666461432.

It can be divided in two parts, 40 and 236, that added together give a triangular number (276 = T₂₃).

The spelling of 40236 in words is "forty thousand, two hundred thirty-six".