823230 has 32 divisors (see below), whose sum is σ = 2196000. Its totient is φ = 219456.

The previous prime is 823219. The next prime is 823231. The reversal of 823230 is 32328.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823231) by changing a digit.

823230 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255 + ... + 1794.

It is an arithmetic number, because the mean of its divisors is an integer number (68625).

2⁸²³²³⁰ is an apocalyptic number.

823230 is an abundant number, since it is smaller than the sum of its proper divisors (1372770).

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

823230 is a wasteful number, since it uses less digits than its factorization.

823230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3065 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 823230 is about 907.3202301283. The cubic root of 823230 is about 93.7217514891.

Adding to 823230 its reverse (32328), we get a palindrome (855558).

The spelling of 823230 in words is "eight hundred twenty-three thousand, two hundred thirty".