323231040 has 448 divisors, whose sum is σ = 1316736000. Its totient is φ = 73820160.

The previous prime is 323231039. The next prime is 323231089. The reversal of 323231040 is 40132323.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1805671 + ... + 1805849.

Almost surely, 2^323231040 is an apocalyptic number.

323231040 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 323231040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658368000).

323231040 is an abundant number, since it is smaller than the sum of its proper divisors (993504960).

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

323231040 is a wasteful number, since it uses less digits than its factorization.

323231040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 323231040 is about 17978.6273113383. The cubic root of 323231040 is about 686.2847574142.

Adding to 323231040 its reverse (40132323), we get a palindrome (363363363).

The spelling of 323231040 in words is "three hundred twenty-three million, two hundred thirty-one thousand, forty".