198342 has 16 divisors (see below), whose sum is σ = 440880. Its totient is φ = 66096.

The previous prime is 198337. The next prime is 198347. The reversal of 198342 is 243891.

198342 is nontrivially palindromic in base 8.

It is an interprime number because it is at equal distance from previous prime (198337) and next prime (198347).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198347) by changing a digit.

198342 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, 1783 + ... + 1890.

It is an arithmetic number, because the mean of its divisors is an integer number (27555).

2¹⁹⁸³⁴² is an apocalyptic number.

198342 is an abundant number, since it is smaller than the sum of its proper divisors (242538).

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

198342 is a wasteful number, since it uses less digits than its factorization.

198342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684 (or 3678 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 198342 is about 445.3560373454. The cubic root of 198342 is about 58.3183054259.

It can be divided in two parts, 1983 and 42, that added together give a square (2025 = 45²).

The spelling of 198342 in words is "one hundred ninety-eight thousand, three hundred forty-two".