206242 has 8 divisors (see below), whose sum is σ = 312732. Its totient is φ = 102000.

The previous prime is 206237. The next prime is 206249. The reversal of 206242 is 242602.

It can be written as a sum of positive squares in 2 ways, for example, as 184041 + 22201 = 429^2 + 149^2 .

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

It is not an unprimeable number, because it can be changed into a prime (206249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309 + ... + 712.

2²⁰⁶²⁴² is an apocalyptic number.

206242 is a deficient number, since it is larger than the sum of its proper divisors (106490).

206242 is a wasteful number, since it uses less digits than its factorization.

206242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 206242 is about 454.1387453191. The cubic root of 206242 is about 59.0825236084.

Adding to 206242 its reverse (242602), we get a palindrome (448844).

The spelling of 206242 in words is "two hundred six thousand, two hundred forty-two".