168281448 has 32 divisors (see below), whose sum is σ = 421135200. Its totient is φ = 56036288.

The previous prime is 168281447. The next prime is 168281483. The reversal of 168281448 is 844182861.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (168281441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24898 + ... + 30926.

It is an arithmetic number, because the mean of its divisors is an integer number (13160475).

Almost surely, 2^168281448 is an apocalyptic number.

It is an amenable number.

168281448 is an abundant number, since it is smaller than the sum of its proper divisors (252853752).

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

168281448 is a wasteful number, since it uses less digits than its factorization.

168281448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7201 (or 7197 counting only the distinct ones).

The product of its digits is 98304, while the sum is 42.

The square root of 168281448 is about 12972.3339457478. Note that the first 3 decimals coincide. The cubic root of 168281448 is about 552.0927957835.

The spelling of 168281448 in words is "one hundred sixty-eight million, two hundred eighty-one thousand, four hundred forty-eight".