323403040 has 48 divisors (see below), whose sum is σ = 766903032. Its totient is φ = 128876544.

The previous prime is 323403007. The next prime is 323403079. The reversal of 323403040 is 40304323.

It can be written as a sum of positive squares in 4 ways, for example, as 181602576 + 141800464 = 13476^2 + 11908^2 .

It is a junction number, because it is equal to n+sod(n) for n = 323402999 and 323403017.

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, 40672 + ... + 47968.

Almost surely, 2^323403040 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 323403040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383451516).

323403040 is an abundant number, since it is smaller than the sum of its proper divisors (443499992).

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

323403040 is a wasteful number, since it uses less digits than its factorization.

323403040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589 (or 7581 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 323403040 is about 17983.4101326751. The cubic root of 323403040 is about 686.4064660707.

Adding to 323403040 its reverse (40304323), we get a palindrome (363707363).

The spelling of 323403040 in words is "three hundred twenty-three million, four hundred three thousand, forty".