308942 has 8 divisors (see below), whose sum is σ = 467856. Its totient is φ = 152992.

The previous prime is 308939. The next prime is 308951. The reversal of 308942 is 249803.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458 + ... + 909.

It is an arithmetic number, because the mean of its divisors is an integer number (58482).

2³⁰⁸⁹⁴² is an apocalyptic number.

308942 is a deficient number, since it is larger than the sum of its proper divisors (158914).

308942 is a wasteful number, since it uses less digits than its factorization.

308942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1482.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 308942 is about 555.8255121889. The cubic root of 308942 is about 67.6019128107.

The spelling of 308942 in words is "three hundred eight thousand, nine hundred forty-two".