206338 has 16 divisors (see below), whose sum is σ = 344736. Its totient is φ = 91840.

The previous prime is 206303. The next prime is 206341. The reversal of 206338 is 833602.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1770 + ... + 1882.

It is an arithmetic number, because the mean of its divisors is an integer number (21546).

2²⁰⁶³³⁸ is an apocalyptic number.

206338 is a deficient number, since it is larger than the sum of its proper divisors (138398).

206338 is a wasteful number, since it uses less digits than its factorization.

206338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 206338 is about 454.2444275938. The cubic root of 206338 is about 59.0916892850.

Subtracting 206338 from its reverse (833602), we obtain a square (627264 = 792²).

The spelling of 206338 in words is "two hundred six thousand, three hundred thirty-eight".