342018 has 12 divisors (see below), whose sum is σ = 741078. Its totient is φ = 114000.

The previous prime is 341993. The next prime is 342037. The reversal of 342018 is 810243.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 328329 + 13689 = 573^2 + 117^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 19001 = 342018 / (3 + 4 + 2 + 0 + 1 + 8).

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 342018.

It is an unprimeable number.

342018 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 5 ways as a sum of consecutive naturals, for example, 9483 + ... + 9518.

2³⁴²⁰¹⁸ is an apocalyptic number.

342018 is an abundant number, since it is smaller than the sum of its proper divisors (399060).

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

342018 is a wasteful number, since it uses less digits than its factorization.

342018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19009 (or 19006 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 342018 is about 584.8230501613. The cubic root of 342018 is about 69.9331334258.

The spelling of 342018 in words is "three hundred forty-two thousand, eighteen".