323403216 has 40 divisors (see below), whose sum is σ = 844856640. Its totient is φ = 106588416.

The previous prime is 323403187. The next prime is 323403221. The reversal of 323403216 is 612304323.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33580 + ... + 42123.

It is an arithmetic number, because the mean of its divisors is an integer number (21121416).

Almost surely, 2^323403216 is an apocalyptic number.

It is an amenable number.

323403216 is an abundant number, since it is smaller than the sum of its proper divisors (521453424).

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

323403216 is a wasteful number, since it uses less digits than its factorization.

323403216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75803 (or 75797 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 323403216 is about 17983.4150260733. The cubic root of 323403216 is about 686.4065905877.

Adding to 323403216 its reverse (612304323), we get a palindrome (935707539).

The spelling of 323403216 in words is "three hundred twenty-three million, four hundred three thousand, two hundred sixteen".