168445648 has 40 divisors (see below), whose sum is σ = 374440320. Its totient is φ = 71909760.

The previous prime is 168445637. The next prime is 168445687. The reversal of 168445648 is 846544861.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 168445598 and 168445607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27333 + ... + 32923.

It is an arithmetic number, because the mean of its divisors is an integer number (9361008).

Almost surely, 2^168445648 is an apocalyptic number.

It is an amenable number.

168445648 is an abundant number, since it is smaller than the sum of its proper divisors (205994672).

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

168445648 is a wasteful number, since it uses less digits than its factorization.

168445648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875 (or 5869 counting only the distinct ones).

The product of its digits is 737280, while the sum is 46.

The square root of 168445648 is about 12978.6612560772. The cubic root of 168445648 is about 552.2723049117.

The spelling of 168445648 in words is "one hundred sixty-eight million, four hundred forty-five thousand, six hundred forty-eight".