308838 has 8 divisors (see below), whose sum is σ = 617688. Its totient is φ = 102944.

The previous prime is 308827. The next prime is 308849. The reversal of 308838 is 838803.

308838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (308827) and next prime (308849).

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

308838 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 308838.

It is an unprimeable number.

308838 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, 25731 + ... + 25742.

It is an arithmetic number, because the mean of its divisors is an integer number (77211).

2³⁰⁸⁸³⁸ is an apocalyptic number.

308838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

308838 is a wasteful number, since it uses less digits than its factorization.

308838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51478.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 308838 is about 555.7319497743. The cubic root of 308838 is about 67.5943262864.

The spelling of 308838 in words is "three hundred eight thousand, eight hundred thirty-eight".