308938 has 8 divisors (see below), whose sum is σ = 529632. Its totient is φ = 132396.

The previous prime is 308933. The next prime is 308939. The reversal of 308938 is 839803.

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

It is not an unprimeable number, because it can be changed into a prime (308933) by changing a digit.

308938 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, 11020 + ... + 11047.

It is an arithmetic number, because the mean of its divisors is an integer number (66204).

2³⁰⁸⁹³⁸ is an apocalyptic number.

308938 is a deficient number, since it is larger than the sum of its proper divisors (220694).

308938 is a wasteful number, since it uses less digits than its factorization.

308938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22076.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 308938 is about 555.8219139257. The cubic root of 308938 is about 67.6016210528.

The spelling of 308938 in words is "three hundred eight thousand, nine hundred thirty-eight".