385306 has 8 divisors (see below), whose sum is σ = 590400. Its totient is φ = 188508.

The previous prime is 385291. The next prime is 385321. The reversal of 385306 is 603583.

It is an interprime number because it is at equal distance from previous prime (385291) and next prime (385321).

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

It is an unprimeable number.

385306 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1956 + ... + 2143.

It is an arithmetic number, because the mean of its divisors is an integer number (73800).

2³⁸⁵³⁰⁶ is an apocalyptic number.

385306 is a deficient number, since it is larger than the sum of its proper divisors (205094).

385306 is a wasteful number, since it uses less digits than its factorization.

385306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4148.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 385306 is about 620.7302151499. The cubic root of 385306 is about 72.7671318439.

Adding to 385306 its reverse (603583), we get a palindrome (988889).

The spelling of 385306 in words is "three hundred eighty-five thousand, three hundred six".