169728768 has 216 divisors, whose sum is σ = 551315856. Its totient is φ = 49766400.

The previous prime is 169728763. The next prime is 169728773. The reversal of 169728768 is 867827961.

It is an interprime number because it is at equal distance from previous prime (169728763) and next prime (169728773).

It is not an unprimeable number, because it can be changed into a prime (169728761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 937638 + ... + 937818.

Almost surely, 2^169728768 is an apocalyptic number.

169728768 is a gapful number since it is divisible by the number (18) 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 169728768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275657928).

169728768 is an abundant number, since it is smaller than the sum of its proper divisors (381587088).

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

169728768 is a wasteful number, since it uses less digits than its factorization.

169728768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 234 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 169728768 is about 13027.9993859380. Note that the first 3 decimals coincide. The cubic root of 169728768 is about 553.6710546195.

The spelling of 169728768 in words is "one hundred sixty-nine million, seven hundred twenty-eight thousand, seven hundred sixty-eight".