342858 has 8 divisors (see below), whose sum is σ = 685728. Its totient is φ = 114284.

The previous prime is 342847. The next prime is 342863. The reversal of 342858 is 858243.

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

342858 is an admirable number.

It is a Curzon 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, 28566 + ... + 28577.

It is an arithmetic number, because the mean of its divisors is an integer number (85716).

2³⁴²⁸⁵⁸ is an apocalyptic number.

342858 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

342858 is a wasteful number, since it uses less digits than its factorization.

342858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57148.

The product of its digits is 7680, while the sum is 30.

The square root of 342858 is about 585.5407756937. The cubic root of 342858 is about 69.9903388027.

It can be divided in two parts, 3428 and 58, that added together give a triangular number (3486 = T₈₃).

The spelling of 342858 in words is "three hundred forty-two thousand, eight hundred fifty-eight".