220342 has 12 divisors (see below), whose sum is σ = 344916. Its totient is φ = 105560.

The previous prime is 220333. The next prime is 220351. The reversal of 220342 is 243022.

220342 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (220333) and next prime (220351).

It is a congruent number.

It is an unprimeable number.

220342 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 in 5 ways as a sum of consecutive naturals, for example, 1617 + ... + 1747.

It is an arithmetic number, because the mean of its divisors is an integer number (28743).

2²²⁰³⁴² is an apocalyptic number.

220342 is a deficient number, since it is larger than the sum of its proper divisors (124574).

220342 is a wasteful number, since it uses less digits than its factorization.

220342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 162 counting only the distinct ones).

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

The square root of 220342 is about 469.4060076309. The cubic root of 220342 is about 60.3993728280.

Adding to 220342 its reverse (243022), we get a palindrome (463364).

The spelling of 220342 in words is "two hundred twenty thousand, three hundred forty-two", and thus it is an iban number.