342220 has 24 divisors (see below), whose sum is σ = 731808. Its totient is φ = 134400.

The previous prime is 342211. The next prime is 342233. The reversal of 342220 is 22243.

It is a super-2 number, since 2×342220² = 234229056800, 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 342220.

It is an unprimeable number.

342220 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, 1300 + ... + 1540.

It is an arithmetic number, because the mean of its divisors is an integer number (30492).

2³⁴²²²⁰ is an apocalyptic number.

It is an amenable number.

342220 is an abundant number, since it is smaller than the sum of its proper divisors (389588).

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

342220 is a wasteful number, since it uses less digits than its factorization.

342220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 342220 is about 584.9957264801. The cubic root of 342220 is about 69.9468985033.

Adding to 342220 its reverse (22243), we get a palindrome (364463).

The spelling of 342220 in words is "three hundred forty-two thousand, two hundred twenty", and thus it is an iban number.