308118 has 16 divisors (see below), whose sum is σ = 624240. Its totient is φ = 101376.

The previous prime is 308117. The next prime is 308129. The reversal of 308118 is 811803.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 308094 and 308103.

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 308118.

It is not an unprimeable number, because it can be changed into a prime (308117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246 + ... + 822.

It is an arithmetic number, because the mean of its divisors is an integer number (39015).

2³⁰⁸¹¹⁸ is an apocalyptic number.

308118 is an abundant number, since it is smaller than the sum of its proper divisors (316122).

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

308118 is a wasteful number, since it uses less digits than its factorization.

308118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 308118 is about 555.0837774607. The cubic root of 308118 is about 67.5417574271.

The spelling of 308118 in words is "three hundred eight thousand, one hundred eighteen".