169128036 has 288 divisors, whose sum is σ = 585591552. Its totient is φ = 39813120.

The previous prime is 169128013. The next prime is 169128041. The reversal of 169128036 is 630821961.

It is a super-2 number, since 2×169128036² = 57208585122434592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1743540 + ... + 1743636.

It is an arithmetic number, because the mean of its divisors is an integer number (2033304).

Almost surely, 2^169128036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 169128036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292795776).

169128036 is an abundant number, since it is smaller than the sum of its proper divisors (416463516).

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

169128036 is a wasteful number, since it uses less digits than its factorization.

169128036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 169128036 is about 13004.9235291869. The cubic root of 169128036 is about 553.0170678612.

Adding to 169128036 its reverse (630821961), we get a palindrome (799949997).

The spelling of 169128036 in words is "one hundred sixty-nine million, one hundred twenty-eight thousand, thirty-six".