40386 has 16 divisors (see below), whose sum is σ = 82944. Its totient is φ = 13104.

The previous prime is 40361. The next prime is 40387. The reversal of 40386 is 68304.

40386 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 (40387) by changing a digit.

40386 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 381.

It is an arithmetic number, because the mean of its divisors is an integer number (5184).

2⁴⁰³⁸⁶ is an apocalyptic number.

40386 is an abundant number, since it is smaller than the sum of its proper divisors (42558).

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 (41472).

40386 is a wasteful number, since it uses less digits than its factorization.

40386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 40386 is about 200.9626831031. The cubic root of 40386 is about 34.3091754105.

The spelling of 40386 in words is "forty thousand, three hundred eighty-six".