168484218 has 16 divisors (see below), whose sum is σ = 385106880. Its totient is φ = 48138336.

The previous prime is 168484213. The next prime is 168484259. The reversal of 168484218 is 812484861.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 4011529 = 168484218 / (1 + 6 + 8 + 4 + 8 + 4 + 2 + 1 + 8).

It is a self number, because there is not a number n which added to its sum of digits gives 168484218.

It is not an unprimeable number, because it can be changed into a prime (168484213) 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, 2005723 + ... + 2005806.

It is an arithmetic number, because the mean of its divisors is an integer number (24069180).

Almost surely, 2^168484218 is an apocalyptic number.

168484218 is an abundant number, since it is smaller than the sum of its proper divisors (216622662).

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

168484218 is a wasteful number, since it uses less digits than its factorization.

168484218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4011541.

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

The square root of 168484218 is about 12980.1470715859. The cubic root of 168484218 is about 552.3144540509.

The spelling of 168484218 in words is "one hundred sixty-eight million, four hundred eighty-four thousand, two hundred eighteen".