323609880 has 128 divisors (see below), whose sum is σ = 1076716800. Its totient is φ = 77145600.

The previous prime is 323609863. The next prime is 323609887. The reversal of 323609880 is 88906323.

It is a super-2 number, since 2×323609880² = 209446708867228800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323609887) by changing a digit.

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, 78511 + ... + 82529.

It is an arithmetic number, because the mean of its divisors is an integer number (8411850).

Almost surely, 2^323609880 is an apocalyptic number.

323609880 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 323609880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538358400).

323609880 is an abundant number, since it is smaller than the sum of its proper divisors (753106920).

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

323609880 is a wasteful number, since it uses less digits than its factorization.

323609880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105 (or 4101 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 323609880 is about 17989.1600693306. The cubic root of 323609880 is about 686.5527706696.

The spelling of 323609880 in words is "three hundred twenty-three million, six hundred nine thousand, eight hundred eighty".