391342 has 8 divisors (see below), whose sum is σ = 670896. Its totient is φ = 167712.

The previous prime is 391337. The next prime is 391351. The reversal of 391342 is 243193.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13963 + ... + 13990.

It is an arithmetic number, because the mean of its divisors is an integer number (83862).

2³⁹¹³⁴² is an apocalyptic number.

391342 is a deficient number, since it is larger than the sum of its proper divisors (279554).

391342 is a wasteful number, since it uses less digits than its factorization.

391342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27962.

The product of its digits is 648, while the sum is 22.

The square root of 391342 is about 625.5733370277. The cubic root of 391342 is about 73.1451418935.

The spelling of 391342 in words is "three hundred ninety-one thousand, three hundred forty-two".