323369440 has 48 divisors (see below), whose sum is σ = 766281600. Its totient is φ = 128954880.

The previous prime is 323369437. The next prime is 323369477. The reversal of 323369440 is 44963323.

It is a junction number, because it is equal to n+sod(n) for n = 323369396 and 323369405.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 52945 + ... + 58735.

It is an arithmetic number, because the mean of its divisors is an integer number (15964200).

Almost surely, 2^323369440 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 323369440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383140800).

323369440 is an abundant number, since it is smaller than the sum of its proper divisors (442912160).

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

323369440 is a wasteful number, since it uses less digits than its factorization.

323369440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6155 (or 6147 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 34.

The square root of 323369440 is about 17982.4759140670. The cubic root of 323369440 is about 686.3826938184.

The spelling of 323369440 in words is "three hundred twenty-three million, three hundred sixty-nine thousand, four hundred forty".