323206540 has 12 divisors (see below), whose sum is σ = 678733776. Its totient is φ = 129282608.

The previous prime is 323206529. The next prime is 323206573. The reversal of 323206540 is 45602323.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8080144 + ... + 8080183.

It is an arithmetic number, because the mean of its divisors is an integer number (56561148).

Almost surely, 2^323206540 is an apocalyptic number.

It is an amenable number.

323206540 is an abundant number, since it is smaller than the sum of its proper divisors (355527236).

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

323206540 is a wasteful number, since it uses less digits than its factorization.

323206540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16160336 (or 16160334 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 323206540 is about 17977.9459338379. The cubic root of 323206540 is about 686.2674174939.

Adding to 323206540 its reverse (45602323), we get a palindrome (368808863).

The spelling of 323206540 in words is "three hundred twenty-three million, two hundred six thousand, five hundred forty".