305323668 has 144 divisors (see below), whose sum is σ = 876389696. Its totient is φ = 92378880.

The previous prime is 305323663. The next prime is 305323691. The reversal of 305323668 is 866323503.

It is a happy number.

305323668 is a `hidden beast` number, since 30 + 532 + 36 + 68 = 666.

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 (305323663) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 922263 + ... + 922593.

Almost surely, 2^305323668 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 305323668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (438194848).

305323668 is an abundant number, since it is smaller than the sum of its proper divisors (571066028).

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

305323668 is a wasteful number, since it uses less digits than its factorization.

305323668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 305323668 is about 17473.5133273192. The cubic root of 305323668 is about 673.3695760862.

The spelling of 305323668 in words is "three hundred five million, three hundred twenty-three thousand, six hundred sixty-eight".