308866148 has 12 divisors (see below), whose sum is σ = 542572800. Its totient is φ = 153845352.

The previous prime is 308866141. The next prime is 308866163. The reversal of 308866148 is 841668803.

It is a super-4 number, since 4×308866148⁴ (a number of 35 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 308866099 and 308866108.

It is not an unprimeable number, because it can be changed into a prime (308866141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145748 + ... + 147851.

It is an arithmetic number, because the mean of its divisors is an integer number (45214400).

Almost surely, 2^308866148 is an apocalyptic number.

It is an amenable number.

308866148 is a deficient number, since it is larger than the sum of its proper divisors (233706652).

308866148 is a wasteful number, since it uses less digits than its factorization.

308866148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293866 (or 293864 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 308866148 is about 17574.5881317316. The cubic root of 308866148 is about 675.9637977648.

The spelling of 308866148 in words is "three hundred eight million, eight hundred sixty-six thousand, one hundred forty-eight".