168839946 has 96 divisors (see below), whose sum is σ = 412776000. Its totient is φ = 49443840.

The previous prime is 168839929. The next prime is 168839959. The reversal of 168839946 is 649938861.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

Its product of digits (2239488) is a multiple of the sum of its prime factors (324).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 168839892 and 168839901.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1133080 + ... + 1133228.

It is an arithmetic number, because the mean of its divisors is an integer number (4299750).

Almost surely, 2^168839946 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168839946, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206388000).

168839946 is an abundant number, since it is smaller than the sum of its proper divisors (243936054).

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

168839946 is a wasteful number, since it uses less digits than its factorization.

168839946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 321 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 54.

The square root of 168839946 is about 12993.8426187175. The cubic root of 168839946 is about 552.7028892526.

The spelling of 168839946 in words is "one hundred sixty-eight million, eight hundred thirty-nine thousand, nine hundred forty-six".