40206 has 8 divisors (see below), whose sum is σ = 80424. Its totient is φ = 13400.

The previous prime is 40193. The next prime is 40213. The reversal of 40206 is 60204.

40206 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 sphenic number, since it is the product of 3 distinct primes.

40206 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 40191 and 40200.

It is a congruent number.

It is an unprimeable number.

40206 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 3 ways as a sum of consecutive naturals, for example, 3345 + ... + 3356.

It is an arithmetic number, because the mean of its divisors is an integer number (10053).

2⁴⁰²⁰⁶ is an apocalyptic number.

40206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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 (40212).

40206 is a wasteful number, since it uses less digits than its factorization.

40206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40206 is about 200.5143386394. The cubic root of 40206 is about 34.2581276110.

The spelling of 40206 in words is "forty thousand, two hundred six".