169842 has 8 divisors (see below), whose sum is σ = 339696. Its totient is φ = 56612.

The previous prime is 169837. The next prime is 169843. The reversal of 169842 is 248961.

It is a sphenic number, since it is the product of 3 distinct primes.

169842 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 169842.

It is not an unprimeable number, because it can be changed into a prime (169843) by changing a digit.

169842 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 3 ways as a sum of consecutive naturals, for example, 14148 + ... + 14159.

It is an arithmetic number, because the mean of its divisors is an integer number (42462).

2¹⁶⁹⁸⁴² is an apocalyptic number.

169842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

169842 is a wasteful number, since it uses less digits than its factorization.

169842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28312.

The product of its digits is 3456, while the sum is 30.

The square root of 169842 is about 412.1189148777. The cubic root of 169842 is about 55.3794151694.

The spelling of 169842 in words is "one hundred sixty-nine thousand, eight hundred forty-two".