169422 has 32 divisors (see below), whose sum is σ = 393984. Its totient is φ = 48000.

The previous prime is 169409. The next prime is 169427. The reversal of 169422 is 224961.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 169392 and 169401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169427) by changing a digit.

169422 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 15 ways as a sum of consecutive naturals, for example, 1047 + ... + 1197.

It is an arithmetic number, because the mean of its divisors is an integer number (12312).

2¹⁶⁹⁴²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196992).

169422 is an abundant number, since it is smaller than the sum of its proper divisors (224562).

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

169422 is a wasteful number, since it uses less digits than its factorization.

169422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184.

The product of its digits is 864, while the sum is 24.

The square root of 169422 is about 411.6090378016. The cubic root of 169422 is about 55.3337284854. Note that the first 3 decimals are identical.

The spelling of 169422 in words is "one hundred sixty-nine thousand, four hundred twenty-two".