168389896 has 48 divisors (see below), whose sum is σ = 338135940. Its totient is φ = 78597120.

The previous prime is 168389867. The next prime is 168389899. The reversal of 168389896 is 698983861.

It can be written as a sum of positive squares in 6 ways, for example, as 113422500 + 54967396 = 10650^2 + 7414^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 168389896.

It is not an unprimeable number, because it can be changed into a prime (168389899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399766 + ... + 400186.

Almost surely, 2^168389896 is an apocalyptic number.

It is an amenable number.

168389896 is an abundant number, since it is smaller than the sum of its proper divisors (169746044).

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

168389896 is a wasteful number, since it uses less digits than its factorization.

168389896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634 (or 613 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 58.

The square root of 168389896 is about 12976.5132450901. The cubic root of 168389896 is about 552.2113679794.

The spelling of 168389896 in words is "one hundred sixty-eight million, three hundred eighty-nine thousand, eight hundred ninety-six".