323440668 has 96 divisors (see below), whose sum is σ = 864568320. Its totient is φ = 104509440.

The previous prime is 323440661. The next prime is 323440669. The reversal of 323440668 is 866044323.

It is a happy number.

It is a super-2 number, since 2×323440668² = 209227731432572448, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323440661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1193373 + ... + 1193643.

It is an arithmetic number, because the mean of its divisors is an integer number (9005920).

Almost surely, 2^323440668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323440668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (432284160).

323440668 is an abundant number, since it is smaller than the sum of its proper divisors (541127652).

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

323440668 is a wasteful number, since it uses less digits than its factorization.

323440668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 323440668 is about 17984.4562886955. The cubic root of 323440668 is about 686.4330862089.

The spelling of 323440668 in words is "three hundred twenty-three million, four hundred forty thousand, six hundred sixty-eight".