169868928 has 32 divisors (see below), whose sum is σ = 451215360. Its totient is φ = 56622848.

The previous prime is 169868851. The next prime is 169868929. The reversal of 169868928 is 829868961.

169868928 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (169868929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220800 + ... + 221567.

It is an arithmetic number, because the mean of its divisors is an integer number (14100480).

Almost surely, 2^169868928 is an apocalyptic number.

It is an amenable number.

169868928 is an abundant number, since it is smaller than the sum of its proper divisors (281346432).

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

169868928 is an equidigital number, since it uses as much as digits as its factorization.

169868928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442384 (or 442372 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 57.

The square root of 169868928 is about 13033.3774594308. The cubic root of 169868928 is about 553.8234176801.

The spelling of 169868928 in words is "one hundred sixty-nine million, eight hundred sixty-eight thousand, nine hundred twenty-eight".