306248 has 8 divisors (see below), whose sum is σ = 574230. Its totient is φ = 153120.

The previous prime is 306247. The next prime is 306253. The reversal of 306248 is 842603.

It is a happy number.

306248 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., 178084 + 128164 = 422^2 + 358^2 .

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

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 306248.

It is not an unprimeable number, because it can be changed into a prime (306247) 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, 19133 + ... + 19148.

2³⁰⁶²⁴⁸ is an apocalyptic number.

It is an amenable number.

306248 is a deficient number, since it is larger than the sum of its proper divisors (267982).

306248 is a wasteful number, since it uses less digits than its factorization.

306248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38287 (or 38283 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 306248 is about 553.3967835107. The cubic root of 306248 is about 67.4048407621.

The spelling of 306248 in words is "three hundred six thousand, two hundred forty-eight".