312308 has 12 divisors (see below), whose sum is σ = 551040. Its totient is φ = 154872.

The previous prime is 312289. The next prime is 312311. The reversal of 312308 is 803213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413 + ... + 891.

It is an arithmetic number, because the mean of its divisors is an integer number (45920).

2³¹²³⁰⁸ is an apocalyptic number.

It is an amenable number.

312308 is a deficient number, since it is larger than the sum of its proper divisors (238732).

312308 is a wasteful number, since it uses less digits than its factorization.

312308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 312308 is about 558.8452379684. The cubic root of 312308 is about 67.8465397494.

The spelling of 312308 in words is "three hundred twelve thousand, three hundred eight".