308949443 has 16 divisors (see below), whose sum is σ = 356778240. Its totient is φ = 264578400.

The previous prime is 308949439. The next prime is 308949451. The reversal of 308949443 is 344949803.

It is a cyclic number.

It is not a de Polignac number, because 308949443 - 2² = 308949439 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 308949394 and 308949403.

It is not an unprimeable number, because it can be changed into a prime (308949413) 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 15 ways as a sum of consecutive naturals, for example, 33746 + ... + 41912.

It is an arithmetic number, because the mean of its divisors is an integer number (22298640).

Almost surely, 2^308949443 is an apocalyptic number.

308949443 is a deficient number, since it is larger than the sum of its proper divisors (47828797).

308949443 is a wasteful number, since it uses less digits than its factorization.

308949443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8378.

The product of its (nonzero) digits is 373248, while the sum is 44.

The square root of 308949443 is about 17576.9577287994. The cubic root of 308949443 is about 676.0245569257.

The spelling of 308949443 in words is "three hundred eight million, nine hundred forty-nine thousand, four hundred forty-three".