168213984 has 24 divisors (see below), whose sum is σ = 441561960. Its totient is φ = 56071296.

The previous prime is 168213977. The next prime is 168214009. The reversal of 168213984 is 489312861.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876019 + ... + 876210.

It is an arithmetic number, because the mean of its divisors is an integer number (18398415).

Almost surely, 2^168213984 is an apocalyptic number.

It is an amenable number.

168213984 is an abundant number, since it is smaller than the sum of its proper divisors (273347976).

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

168213984 is a wasteful number, since it uses less digits than its factorization.

168213984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752242 (or 1752234 counting only the distinct ones).

The product of its digits is 82944, while the sum is 42.

The square root of 168213984 is about 12969.7333819936. The cubic root of 168213984 is about 552.0190079571.

The spelling of 168213984 in words is "one hundred sixty-eight million, two hundred thirteen thousand, nine hundred eighty-four".