305338081 has 8 divisors (see below), whose sum is σ = 309716480. Its totient is φ = 300972672.

The previous prime is 305338069. The next prime is 305338147. The reversal of 305338081 is 180833503.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 305338081 - 2⁷ = 305337953 is a prime.

It is a super-2 number, since 2×305338081² = 186462687417525122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305338031) 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 7 ways as a sum of consecutive naturals, for example, 50296 + ... + 56038.

It is an arithmetic number, because the mean of its divisors is an integer number (38714560).

Almost surely, 2^305338081 is an apocalyptic number.

It is an amenable number.

305338081 is a deficient number, since it is larger than the sum of its proper divisors (4378399).

305338081 is an equidigital number, since it uses as much as digits as its factorization.

305338081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6495.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 305338081 is about 17473.9257466661. The cubic root of 305338081 is about 673.3801715340.

The spelling of 305338081 in words is "three hundred five million, three hundred thirty-eight thousand, eighty-one".