308768 has 12 divisors (see below), whose sum is σ = 607950. Its totient is φ = 154368.

The previous prime is 308761. The next prime is 308773. The reversal of 308768 is 867803.

It can be written as a sum of positive squares in only one way, i.e., 300304 + 8464 = 548^2 + 92^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 9649 = 308768 / (3 + 0 + 8 + 7 + 6 + 8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308768.

It is not an unprimeable number, because it can be changed into a prime (308761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4793 + ... + 4856.

2³⁰⁸⁷⁶⁸ is an apocalyptic number.

It is an amenable number.

308768 is a deficient number, since it is larger than the sum of its proper divisors (299182).

308768 is an equidigital number, since it uses as much as digits as its factorization.

308768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9659 (or 9651 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 308768 is about 555.6689662020. The cubic root of 308768 is about 67.5892190130.

The spelling of 308768 in words is "three hundred eight thousand, seven hundred sixty-eight".