323401340 has 24 divisors (see below), whose sum is σ = 679533792. Its totient is φ = 129286080.

The previous prime is 323401339. The next prime is 323401343. The reversal of 323401340 is 43104323.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323401343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42722 + ... + 49718.

It is an arithmetic number, because the mean of its divisors is an integer number (28313908).

Almost surely, 2^323401340 is an apocalyptic number.

It is an amenable number.

323401340 is an abundant number, since it is smaller than the sum of its proper divisors (356132452).

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

323401340 is a wasteful number, since it uses less digits than its factorization.

323401340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9317 (or 9315 counting only the distinct ones).

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

The square root of 323401340 is about 17983.3628668278. The cubic root of 323401340 is about 686.4052633475.

Adding to 323401340 its reverse (43104323), we get a palindrome (366505663).

The spelling of 323401340 in words is "three hundred twenty-three million, four hundred one thousand, three hundred forty".