233816 has 16 divisors (see below), whose sum is σ = 478440. Its totient is φ = 106240.

The previous prime is 233777. The next prime is 233837. The reversal of 233816 is 618332.

It is a junction number, because it is equal to n+sod(n) for n = 233791 and 233800.

It is a congruent number.

It is an unprimeable number.

233816 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 3 ways as a sum of consecutive naturals, for example, 1241 + ... + 1416.

2²³³⁸¹⁶ is an apocalyptic number.

It is an amenable number.

233816 is an abundant number, since it is smaller than the sum of its proper divisors (244624).

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

233816 is a wasteful number, since it uses less digits than its factorization.

233816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674 (or 2670 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 233816 is about 483.5452409031. The cubic root of 233816 is about 61.6062455016.

The spelling of 233816 in words is "two hundred thirty-three thousand, eight hundred sixteen".