342219 has 4 divisors (see below), whose sum is σ = 456296. Its totient is φ = 228144.

The previous prime is 342211. The next prime is 342233. The reversal of 342219 is 912243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912243 = 3 ⋅304081.

It is not a de Polignac number, because 342219 - 2³ = 342211 is a prime.

It is a super-2 number, since 2×342219² = 234227687922, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 342195 and 342204.

It is not an unprimeable number, because it can be changed into a prime (342211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57034 + ... + 57039.

It is an arithmetic number, because the mean of its divisors is an integer number (114074).

2³⁴²²¹⁹ is an apocalyptic number.

342219 is a deficient number, since it is larger than the sum of its proper divisors (114077).

342219 is a wasteful number, since it uses less digits than its factorization.

342219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114076.

The product of its digits is 432, while the sum is 21.

The square root of 342219 is about 584.9948717724. The cubic root of 342219 is about 69.9468303727.

It can be divided in two parts, 342 and 219, that added together give a triangular number (561 = T₃₃).

The spelling of 342219 in words is "three hundred forty-two thousand, two hundred nineteen".