323001728 has 80 divisors (see below), whose sum is σ = 751396260. Its totient is φ = 138297600.

The previous prime is 323001727. The next prime is 323001733. The reversal of 323001728 is 827100323.

It is a junction number, because it is equal to n+sod(n) for n = 323001697 and 323001706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323001727) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 306803 + ... + 307853.

Almost surely, 2^323001728 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 323001728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375698130).

323001728 is an abundant number, since it is smaller than the sum of its proper divisors (428394532).

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

323001728 is an frugal number, since it uses more digits than its factorization.

323001728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093 (or 1060 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 323001728 is about 17972.2488297931. The cubic root of 323001728 is about 686.1224271293.

The spelling of 323001728 in words is "three hundred twenty-three million, one thousand, seven hundred twenty-eight".