354218 has 4 divisors (see below), whose sum is σ = 531330. Its totient is φ = 177108.

The previous prime is 354209. The next prime is 354247. The reversal of 354218 is 812453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 812453 = 71 ⋅11443.

It can be written as a sum of positive squares in only one way, i.e., 316969 + 37249 = 563^2 + 193^2 .

It is a super-3 number, since 3×354218³ = 133331613434544696, which contains 333 as substring.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 354193 and 354202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88553 + ... + 88556.

2³⁵⁴²¹⁸ is an apocalyptic number.

354218 is a deficient number, since it is larger than the sum of its proper divisors (177112).

354218 is a wasteful number, since it uses less digits than its factorization.

354218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177111.

The product of its digits is 960, while the sum is 23.

The square root of 354218 is about 595.1621627758. The cubic root of 354218 is about 70.7549576785.

The spelling of 354218 in words is "three hundred fifty-four thousand, two hundred eighteen".