323223540 has 24 divisors (see below), whose sum is σ = 905026080. Its totient is φ = 86192928.

The previous prime is 323223539. The next prime is 323223553. The reversal of 323223540 is 45322323.

It is a self number, because there is not a number n which added to its sum of digits gives 323223540.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2693470 + ... + 2693589.

It is an arithmetic number, because the mean of its divisors is an integer number (37709420).

Almost surely, 2^323223540 is an apocalyptic number.

323223540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

323223540 is an abundant number, since it is smaller than the sum of its proper divisors (581802540).

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

323223540 is a wasteful number, since it uses less digits than its factorization.

323223540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387071 (or 5387069 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 323223540 is about 17978.4187291319. The cubic root of 323223540 is about 686.2794493684.

Adding to 323223540 its reverse (45322323), we get a palindrome (368545863).

The spelling of 323223540 in words is "three hundred twenty-three million, two hundred twenty-three thousand, five hundred forty".