342278 has 8 divisors (see below), whose sum is σ = 543672. Its totient is φ = 161056.

The previous prime is 342257. The next prime is 342281. The reversal of 342278 is 872243.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

342278 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000 + ... + 5067.

It is an arithmetic number, because the mean of its divisors is an integer number (67959).

2³⁴²²⁷⁸ is an apocalyptic number.

342278 is a deficient number, since it is larger than the sum of its proper divisors (201394).

342278 is a wasteful number, since it uses less digits than its factorization.

342278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10086.

The product of its digits is 2688, while the sum is 26.

The square root of 342278 is about 585.0452973916. The cubic root of 342278 is about 69.9508498513.

The spelling of 342278 in words is "three hundred forty-two thousand, two hundred seventy-eight".