308345 has 8 divisors (see below), whose sum is σ = 374976. Its totient is φ = 243376.

The previous prime is 308333. The next prime is 308359. The reversal of 308345 is 543803.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-308345 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 308345.

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, 44 + ... + 786.

It is an arithmetic number, because the mean of its divisors is an integer number (46872).

2³⁰⁸³⁴⁵ is an apocalyptic number.

It is an amenable number.

308345 is a deficient number, since it is larger than the sum of its proper divisors (66631).

308345 is an equidigital number, since it uses as much as digits as its factorization.

308345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 308345 is about 555.2882134532. The cubic root of 308345 is about 67.5583400516.

The spelling of 308345 in words is "three hundred eight thousand, three hundred forty-five".