323821056 has 80 divisors (see below), whose sum is σ = 929096784. Its totient is φ = 99631104.

The previous prime is 323821051. The next prime is 323821073. The reversal of 323821056 is 650128323.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323821051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11860 + ... + 28076.

Almost surely, 2^323821056 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 323821056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (464548392).

323821056 is an abundant number, since it is smaller than the sum of its proper divisors (605275728).

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

323821056 is a wasteful number, since it uses less digits than its factorization.

323821056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16251 (or 16235 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 323821056 is about 17995.0286468235. The cubic root of 323821056 is about 686.7020779593.

Adding to 323821056 its reverse (650128323), we get a palindrome (973949379).

The spelling of 323821056 in words is "three hundred twenty-three million, eight hundred twenty-one thousand, fifty-six".