323316840 has 192 divisors, whose sum is σ = 1218833280. Its totient is φ = 67161600.

The previous prime is 323316803. The next prime is 323316883. The reversal of 323316840 is 48613323.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 323316798 and 323316807.

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 47 ways as a sum of consecutive naturals, for example, 100050 + ... + 103230.

It is an arithmetic number, because the mean of its divisors is an integer number (6348090).

Almost surely, 2^323316840 is an apocalyptic number.

323316840 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323316840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (609416640).

323316840 is an abundant number, since it is smaller than the sum of its proper divisors (895516440).

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

323316840 is a wasteful number, since it uses less digits than its factorization.

323316840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3224 (or 3209 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 323316840 is about 17981.0133196102. The cubic root of 323316840 is about 686.3454756164.

The spelling of 323316840 in words is "three hundred twenty-three million, three hundred sixteen thousand, eight hundred forty".