169860 has 48 divisors (see below), whose sum is σ = 504000. Its totient is φ = 42624.

The previous prime is 169859. The next prime is 169889. The reversal of 169860 is 68961.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1066 + ... + 1214.

It is an arithmetic number, because the mean of its divisors is an integer number (10500).

2¹⁶⁹⁸⁶⁰ is an apocalyptic number.

169860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252000).

169860 is an abundant number, since it is smaller than the sum of its proper divisors (334140).

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

169860 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 11 representation: 169860 = (106689)₁₁.

169860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 169860 is about 412.1407526562. The cubic root of 169860 is about 55.3813714862.

The spelling of 169860 in words is "one hundred sixty-nine thousand, eight hundred sixty".