308990308 has 12 divisors (see below), whose sum is σ = 589890672. Its totient is φ = 140450120.

The previous prime is 308990233. The next prime is 308990333. The reversal of 308990308 is 803099803.

It is an unprimeable number.

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, 3511210 + ... + 3511297.

It is an arithmetic number, because the mean of its divisors is an integer number (49157556).

Almost surely, 2^308990308 is an apocalyptic number.

It is an amenable number.

308990308 is a deficient number, since it is larger than the sum of its proper divisors (280900364).

308990308 is a wasteful number, since it uses less digits than its factorization.

308990308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7022522 (or 7022520 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 308990308 is about 17578.1201497771. The cubic root of 308990308 is about 676.0543617219.

The spelling of 308990308 in words is "three hundred eight million, nine hundred ninety thousand, three hundred eight".