305338 has 8 divisors (see below), whose sum is σ = 499680. Its totient is φ = 138780.

The previous prime is 305329. The next prime is 305339. The reversal of 305338 is 833503.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 13879 = 305338 / (3 + 0 + 5 + 3 + 3 + 8).

It is not an unprimeable number, because it can be changed into a prime (305339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6918 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (62460).

2³⁰⁵³³⁸ is an apocalyptic number.

305338 is a deficient number, since it is larger than the sum of its proper divisors (194342).

305338 is a wasteful number, since it uses less digits than its factorization.

305338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13892.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 305338 is about 552.5739769479. The cubic root of 305338 is about 67.3380111989.

The spelling of 305338 in words is "three hundred five thousand, three hundred thirty-eight".