40366 has 4 divisors (see below), whose sum is σ = 60552. Its totient is φ = 20182.
The previous prime is 40361. The next prime is 40387. The reversal of 40366 is 66304.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (40361) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10090 + ... + 10093.
It is an arithmetic number, because the mean of its divisors is an integer number (15138).
240366 is an apocalyptic number.
40366 is a deficient number, since it is larger than the sum of its proper divisors (20186).
40366 is a wasteful number, since it uses less digits than its factorization.
40366 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 20185.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 40366 is about 200.9129164588. The cubic root of 40366 is about 34.3035109327.
It can be divided in two parts, 40 and 366, that added together give a triangular number (406 = T28).
The spelling of 40366 in words is "forty thousand, three hundred sixty-six".
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