209238 has 16 divisors (see below), whose sum is σ = 428736. Its totient is φ = 68040.

The previous prime is 209233. The next prime is 209249. The reversal of 209238 is 832902.

209238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148 + ... + 663.

It is an arithmetic number, because the mean of its divisors is an integer number (26796).

2²⁰⁹²³⁸ is an apocalyptic number.

209238 is an abundant number, since it is smaller than the sum of its proper divisors (219498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209238 is a wasteful number, since it uses less digits than its factorization.

209238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 209238 is about 457.4254037545. The cubic root of 209238 is about 59.3672392442.

The spelling of 209238 in words is "two hundred nine thousand, two hundred thirty-eight".