169020 has 48 divisors (see below), whose sum is σ = 527520. Its totient is φ = 44928.

The previous prime is 169019. The next prime is 169049. The reversal of 169020 is 20961.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 168984 and 169002.

It is a congruent number.

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, 384 + ... + 696.

It is an arithmetic number, because the mean of its divisors is an integer number (10990).

2¹⁶⁹⁰²⁰ is an apocalyptic number.

169020 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 169020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (263760).

169020 is an abundant number, since it is smaller than the sum of its proper divisors (358500).

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

169020 is a wasteful number, since it uses less digits than its factorization.

169020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 169020 is about 411.1204203150. The cubic root of 169020 is about 55.2899290270.

Adding to 169020 its reverse (20961), we get a palindrome (189981).

The spelling of 169020 in words is "one hundred sixty-nine thousand, twenty".