823012230 has 64 divisors (see below), whose sum is σ = 2019064320. Its totient is φ = 214653696.

The previous prime is 823012187. The next prime is 823012241. The reversal of 823012230 is 32210328.

It is a junction number, because it is equal to n+sod(n) for n = 823012197 and 823012206.

It is a congruent number.

It is an unprimeable 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 31 ways as a sum of consecutive naturals, for example, 254866 + ... + 258074.

It is an arithmetic number, because the mean of its divisors is an integer number (31547880).

Almost surely, 2^823012230 is an apocalyptic number.

823012230 is an abundant number, since it is smaller than the sum of its proper divisors (1196052090).

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

823012230 is a wasteful number, since it uses less digits than its factorization.

823012230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 823012230 is about 28688.1897302705. The cubic root of 823012230 is about 937.1348665190.

Adding to 823012230 its reverse (32210328), we get a palindrome (855222558).

The spelling of 823012230 in words is "eight hundred twenty-three million, twelve thousand, two hundred thirty".