168876840 has 128 divisors (see below), whose sum is σ = 570654720. Its totient is φ = 39609600.

The previous prime is 168876803. The next prime is 168876857. The reversal of 168876840 is 48678861.

It is a self number, because there is not a number n which added to its sum of digits gives 168876840.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38857 + ... + 42983.

It is an arithmetic number, because the mean of its divisors is an integer number (4458240).

Almost surely, 2^168876840 is an apocalyptic number.

168876840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168876840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285327360).

168876840 is an abundant number, since it is smaller than the sum of its proper divisors (401777880).

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

168876840 is a wasteful number, since it uses less digits than its factorization.

168876840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4183 (or 4179 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 48.

The square root of 168876840 is about 12995.2622135915. The cubic root of 168876840 is about 552.7431442116.

The spelling of 168876840 in words is "one hundred sixty-eight million, eight hundred seventy-six thousand, eight hundred forty".