233812 has 6 divisors (see below), whose sum is σ = 409178. Its totient is φ = 116904.

The previous prime is 233777. The next prime is 233837. The reversal of 233812 is 218332.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 133956 + 99856 = 366^2 + 316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 233812.

It is a congruent number.

It is an unprimeable number.

233812 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 as a sum of consecutive naturals, namely, 29223 + ... + 29230.

2²³³⁸¹² is an apocalyptic number.

It is an amenable number.

233812 is a deficient number, since it is larger than the sum of its proper divisors (175366).

233812 is a wasteful number, since it uses less digits than its factorization.

233812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58457 (or 58455 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 233812 is about 483.5411047677. The cubic root of 233812 is about 61.6058941906.

The spelling of 233812 in words is "two hundred thirty-three thousand, eight hundred twelve".