212238 has 24 divisors (see below), whose sum is σ = 495768. Its totient is φ = 65232.

The previous prime is 212227. The next prime is 212239. The reversal of 212238 is 832212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 212238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212239) by changing a digit.

212238 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 11 ways as a sum of consecutive naturals, for example, 220 + ... + 687.

It is an arithmetic number, because the mean of its divisors is an integer number (20657).

2²¹²²³⁸ is an apocalyptic number.

212238 is an abundant number, since it is smaller than the sum of its proper divisors (283530).

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

212238 is a wasteful number, since it uses less digits than its factorization.

212238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 925 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 212238 is about 460.6929563169. The cubic root of 212238 is about 59.6496246007.

The spelling of 212238 in words is "two hundred twelve thousand, two hundred thirty-eight".