323312240 has 40 divisors (see below), whose sum is σ = 761231040. Its totient is φ = 127685376.

The previous prime is 323312221. The next prime is 323312251. The reversal of 323312240 is 42213323.

323312240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

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 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, 19259 + ... + 31898.

It is an arithmetic number, because the mean of its divisors is an integer number (19030776).

Almost surely, 2^323312240 is an apocalyptic number.

It is an amenable number.

323312240 is an abundant number, since it is smaller than the sum of its proper divisors (437918800).

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

323312240 is a wasteful number, since it uses less digits than its factorization.

323312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51249 (or 51243 counting only the distinct ones).

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

The square root of 323312240 is about 17980.8854064532. The cubic root of 323312240 is about 686.3422206007.

Adding to 323312240 its reverse (42213323), we get a palindrome (365525563).

The spelling of 323312240 in words is "three hundred twenty-three million, three hundred twelve thousand, two hundred forty".