323239680 has 288 divisors, whose sum is σ = 1177344000. Its totient is φ = 83939328.

The previous prime is 323239669. The next prime is 323239687. The reversal of 323239680 is 86932323.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323239687) 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 31 ways as a sum of consecutive naturals, for example, 1624221 + ... + 1624419.

It is an arithmetic number, because the mean of its divisors is an integer number (4088000).

Almost surely, 2^323239680 is an apocalyptic number.

323239680 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323239680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (588672000).

323239680 is an abundant number, since it is smaller than the sum of its proper divisors (854104320).

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

323239680 is a wasteful number, since it uses less digits than its factorization.

323239680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 256 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 323239680 is about 17978.8675950406. The cubic root of 323239680 is about 686.2908721812.

The spelling of 323239680 in words is "three hundred twenty-three million, two hundred thirty-nine thousand, six hundred eighty".