308280328 has 8 divisors (see below), whose sum is σ = 578025630. Its totient is φ = 154140160.

The previous prime is 308280319. The next prime is 308280331. The reversal of 308280328 is 823082803.

308280328 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 301300164 + 6980164 = 17358^2 + 2642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 308280293 and 308280302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19267513 + ... + 19267528.

Almost surely, 2^308280328 is an apocalyptic number.

It is an amenable number.

308280328 is a deficient number, since it is larger than the sum of its proper divisors (269745302).

308280328 is a wasteful number, since it uses less digits than its factorization.

308280328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38535047 (or 38535043 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 308280328 is about 17557.9135434709. The cubic root of 308280328 is about 675.5361651306.

The spelling of 308280328 in words is "three hundred eight million, two hundred eighty thousand, three hundred twenty-eight".