345222 has 20 divisors (see below), whose sum is σ = 773916. Its totient is φ = 115020.

The previous prime is 345221. The next prime is 345227. The reversal of 345222 is 222543.

345222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 3² + 4⁵ + 2¹⁴ + 5³ + 2¹⁶ + 2¹⁸ .

It is a junction number, because it is equal to n+sod(n) for n = 345195 and 345204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 904 + ... + 1227.

2³⁴⁵²²² is an apocalyptic number.

345222 is an abundant number, since it is smaller than the sum of its proper divisors (428694).

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

345222 is a wasteful number, since it uses less digits than its factorization.

345222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145 (or 2136 counting only the distinct ones).

The product of its digits is 480, while the sum is 18.

The square root of 345222 is about 587.5559547822. Note that the first 3 decimals coincide. The cubic root of 345222 is about 70.1508312283.

Adding to 345222 its reverse (222543), we get a palindrome (567765).

The spelling of 345222 in words is "three hundred forty-five thousand, two hundred twenty-two".