323322140 has 12 divisors (see below), whose sum is σ = 678976536. Its totient is φ = 129328848.

The previous prime is 323322127. The next prime is 323322149. The reversal of 323322140 is 41223323.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 16166107 = 323322140 / (3 + 2 + 3 + 3 + 2 + 2 + 1 + 4 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323322149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8083034 + ... + 8083073.

It is an arithmetic number, because the mean of its divisors is an integer number (56581378).

Almost surely, 2^323322140 is an apocalyptic number.

It is an amenable number.

323322140 is an abundant number, since it is smaller than the sum of its proper divisors (355654396).

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

323322140 is a wasteful number, since it uses less digits than its factorization.

323322140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16166116 (or 16166114 counting only the distinct ones).

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

The square root of 323322140 is about 17981.1606966847. The cubic root of 323322140 is about 686.3492259222.

Adding to 323322140 its reverse (41223323), we get a palindrome (364545463).

The spelling of 323322140 in words is "three hundred twenty-three million, three hundred twenty-two thousand, one hundred forty".