323883728 has 120 divisors (see below), whose sum is σ = 814233600. Its totient is φ = 123669504.

The previous prime is 323883713. The next prime is 323883737. The reversal of 323883728 is 827388323.

It is a super-3 number, since 3×323883728³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 252593 + ... + 253871.

It is an arithmetic number, because the mean of its divisors is an integer number (6785280).

Almost surely, 2^323883728 is an apocalyptic number.

323883728 is a gapful number since it is divisible by the number (38) 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 323883728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407116800).

323883728 is an abundant number, since it is smaller than the sum of its proper divisors (490349872).

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

323883728 is a wasteful number, since it uses less digits than its factorization.

323883728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1337 (or 1324 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 323883728 is about 17996.7699324073. The cubic root of 323883728 is about 686.7463763104.

The spelling of 323883728 in words is "three hundred twenty-three million, eight hundred eighty-three thousand, seven hundred twenty-eight".