323321240 has 64 divisors (see below), whose sum is σ = 796068000. Its totient is φ = 117207040.

The previous prime is 323321213. The next prime is 323321263. The reversal of 323321240 is 42123323.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170216 + ... + 172104.

Almost surely, 2^323321240 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 323321240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (398034000).

323321240 is an abundant number, since it is smaller than the sum of its proper divisors (472746760).

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

323321240 is a wasteful number, since it uses less digits than its factorization.

323321240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300 (or 2296 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 323321240 is about 17981.1356704742. The cubic root of 323321240 is about 686.3485890807.

Adding to 323321240 its reverse (42123323), we get a palindrome (365444563).

The spelling of 323321240 in words is "three hundred twenty-three million, three hundred twenty-one thousand, two hundred forty".