308947268 has 12 divisors (see below), whose sum is σ = 617894592. Its totient is φ = 132405960.

The previous prime is 308947253. The next prime is 308947279. The reversal of 308947268 is 862749803.

308947268 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

308947268 is an admirable number.

It is an unprimeable number.

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, 5516888 + ... + 5516943.

It is an arithmetic number, because the mean of its divisors is an integer number (51491216).

Almost surely, 2^308947268 is an apocalyptic number.

It is an amenable number.

308947268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

308947268 is a wasteful number, since it uses less digits than its factorization.

308947268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11033842 (or 11033840 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 308947268 is about 17576.8958579153. The cubic root of 308947268 is about 676.0229705206.

The spelling of 308947268 in words is "three hundred eight million, nine hundred forty-seven thousand, two hundred sixty-eight".