823256244 has 96 divisors (see below), whose sum is σ = 2283881600. Its totient is φ = 255674880.

The previous prime is 823256233. The next prime is 823256267. The reversal of 823256244 is 442652328.

823256244 is a `hidden beast` number, since 8 + 2 + 3 + 25 + 624 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 823256199 and 823256208.

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, 121884 + ... + 128460.

Almost surely, 2^823256244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 823256244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1141940800).

823256244 is an abundant number, since it is smaller than the sum of its proper divisors (1460625356).

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

823256244 is a wasteful number, since it uses less digits than its factorization.

823256244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6670 (or 6662 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 823256244 is about 28692.4422801545. The cubic root of 823256244 is about 937.2274740659.

The spelling of 823256244 in words is "eight hundred twenty-three million, two hundred fifty-six thousand, two hundred forty-four".