168218448 has 20 divisors (see below), whose sum is σ = 434564448. Its totient is φ = 56072800.

The previous prime is 168218423. The next prime is 168218459. The reversal of 168218448 is 844812861.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1752228 + ... + 1752323.

Almost surely, 2^168218448 is an apocalyptic number.

It is an amenable number.

168218448 is an abundant number, since it is smaller than the sum of its proper divisors (266346000).

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

168218448 is a wasteful number, since it uses less digits than its factorization.

168218448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504562 (or 3504556 counting only the distinct ones).

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

The square root of 168218448 is about 12969.9054738267. The cubic root of 168218448 is about 552.0238910055.

The spelling of 168218448 in words is "one hundred sixty-eight million, two hundred eighteen thousand, four hundred forty-eight".