168378 has 32 divisors (see below), whose sum is σ = 407040. Its totient is φ = 45360.

The previous prime is 168353. The next prime is 168391. The reversal of 168378 is 873861.

168378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

168378 is a modest number, since divided by 378 gives 168 as remainder.

It is a Curzon number.

It is an unprimeable number.

168378 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 693 + ... + 903.

It is an arithmetic number, because the mean of its divisors is an integer number (12720).

2¹⁶⁸³⁷⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203520).

168378 is an abundant number, since it is smaller than the sum of its proper divisors (238662).

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

168378 is a wasteful number, since it uses less digits than its factorization.

168378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its digits is 8064, while the sum is 33.

The square root of 168378 is about 410.3388843383. The cubic root of 168378 is about 55.2198363911.

It can be divided in two parts, 168 and 378, that multiplied together give a square (63504 = 252²).

The spelling of 168378 in words is "one hundred sixty-eight thousand, three hundred seventy-eight".