168908328 has 192 divisors, whose sum is σ = 530712000. Its totient is φ = 50015232.

The previous prime is 168908317. The next prime is 168908353. The reversal of 168908328 is 823809861.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 627778 + ... + 628046.

It is an arithmetic number, because the mean of its divisors is an integer number (2764125).

Almost surely, 2^168908328 is an apocalyptic number.

168908328 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 168908328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265356000).

168908328 is an abundant number, since it is smaller than the sum of its proper divisors (361803672).

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

168908328 is a wasteful number, since it uses less digits than its factorization.

168908328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326 (or 310 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 168908328 is about 12996.4736755783. The cubic root of 168908328 is about 552.7774960593. Note that the first 3 decimals are identical.

The spelling of 168908328 in words is "one hundred sixty-eight million, nine hundred eight thousand, three hundred twenty-eight".