305385 has 8 divisors (see below), whose sum is σ = 488640. Its totient is φ = 162864.

The previous prime is 305377. The next prime is 305401. The reversal of 305385 is 583503.

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

It is not a de Polignac number, because 305385 - 2³ = 305377 is a prime.

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10165 + ... + 10194.

It is an arithmetic number, because the mean of its divisors is an integer number (61080).

2³⁰⁵³⁸⁵ is an apocalyptic number.

It is an amenable number.

305385 is a deficient number, since it is larger than the sum of its proper divisors (183255).

305385 is a wasteful number, since it uses less digits than its factorization.

305385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20367.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 305385 is about 552.6165035538. The cubic root of 305385 is about 67.3414660852.

Adding to 305385 its reverse (583503), we get a palindrome (888888).

The spelling of 305385 in words is "three hundred five thousand, three hundred eighty-five".