168219008 has 48 divisors (see below), whose sum is σ = 354108300. Its totient is φ = 79379712.

The previous prime is 168219001. The next prime is 168219011. The reversal of 168219008 is 800912861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168219001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639485 + ... + 639747.

Almost surely, 2^168219008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168219008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177054150).

168219008 is an abundant number, since it is smaller than the sum of its proper divisors (185889292).

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

168219008 is an frugal number, since it uses more digits than its factorization.

168219008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 168219008 is about 12969.9270622467. The cubic root of 168219008 is about 552.0245035681.

The spelling of 168219008 in words is "one hundred sixty-eight million, two hundred nineteen thousand, eight".