308476845 has 12 divisors (see below), whose sum is σ = 534693276. Its totient is φ = 164520960.

The previous prime is 308476841. The next prime is 308476859. The reversal of 308476845 is 548674803.

It can be written as a sum of positive squares in 2 ways, for example, as 82846404 + 225630441 = 9102^2 + 15021^2 .

It is not a de Polignac number, because 308476845 - 2² = 308476841 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 6855041 = 308476845 / (3 + 0 + 8 + 4 + 7 + 6 + 8 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 308476845.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308476841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3427476 + ... + 3427565.

It is an arithmetic number, because the mean of its divisors is an integer number (44557773).

Almost surely, 2^308476845 is an apocalyptic number.

It is an amenable number.

308476845 is a deficient number, since it is larger than the sum of its proper divisors (226216431).

308476845 is a wasteful number, since it uses less digits than its factorization.

308476845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855052 (or 6855049 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 308476845 is about 17563.5089034054. The cubic root of 308476845 is about 675.6796775227.

The spelling of 308476845 in words is "three hundred eight million, four hundred seventy-six thousand, eight hundred forty-five".