342218 has 8 divisors (see below), whose sum is σ = 517440. Its totient is φ = 169740.

The previous prime is 342211. The next prime is 342233. The reversal of 342218 is 812243.

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

It is a super-2 number, since 2×342218² = 234226319048, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 342218.

It is not an unprimeable number, because it can be changed into a prime (342211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338 + ... + 893.

It is an arithmetic number, because the mean of its divisors is an integer number (64680).

2³⁴²²¹⁸ is an apocalyptic number.

342218 is a deficient number, since it is larger than the sum of its proper divisors (175222).

342218 is a wasteful number, since it uses less digits than its factorization.

342218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372.

The product of its digits is 384, while the sum is 20.

The square root of 342218 is about 584.9940170634. The cubic root of 342218 is about 69.9467622419.

The spelling of 342218 in words is "three hundred forty-two thousand, two hundred eighteen".