355218 has 16 divisors (see below), whose sum is σ = 721056. Its totient is φ = 116640.

The previous prime is 355211. The next prime is 355261. The reversal of 355218 is 812553.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 355218.

It is not an unprimeable number, because it can be changed into a prime (355211) by changing a digit.

355218 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 7 ways as a sum of consecutive naturals, for example, 33 + ... + 843.

It is an arithmetic number, because the mean of its divisors is an integer number (45066).

2³⁵⁵²¹⁸ is an apocalyptic number.

355218 is an abundant number, since it is smaller than the sum of its proper divisors (365838).

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

355218 is a wasteful number, since it uses less digits than its factorization.

355218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889.

The product of its digits is 1200, while the sum is 24.

The square root of 355218 is about 596.0016778500. The cubic root of 355218 is about 70.8214783697.

It can be divided in two parts, 3552 and 18, that multiplied together give a palindrome (63936).

The spelling of 355218 in words is "three hundred fifty-five thousand, two hundred eighteen".