309363668 has 24 divisors (see below), whose sum is σ = 551544000. Its totient is φ = 151789248.

The previous prime is 309363667. The next prime is 309363689. The reversal of 309363668 is 866363903.

It is a happy number.

309363668 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309363667) 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, 220433 + ... + 221831.

It is an arithmetic number, because the mean of its divisors is an integer number (22981000).

Almost surely, 2^309363668 is an apocalyptic number.

It is an amenable number.

309363668 is a deficient number, since it is larger than the sum of its proper divisors (242180332).

309363668 is a wasteful number, since it uses less digits than its factorization.

309363668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399 (or 2397 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 44.

The square root of 309363668 is about 17588.7369643190. The cubic root of 309363668 is about 676.3265493960.

The spelling of 309363668 in words is "three hundred nine million, three hundred sixty-three thousand, six hundred sixty-eight".