378443178 has 80 divisors (see below), whose sum is σ = 917025120. Its totient is φ = 116243424.

The previous prime is 378443147. The next prime is 378443179. The reversal of 378443178 is 871344873.

378443178 is a `hidden beast` number, since 37 + 8 + 443 + 178 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378443179) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 112225 + ... + 115547.

It is an arithmetic number, because the mean of its divisors is an integer number (11462814).

Almost surely, 2^378443178 is an apocalyptic number.

378443178 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 378443178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458512560).

378443178 is an abundant number, since it is smaller than the sum of its proper divisors (538581942).

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

378443178 is a wasteful number, since it uses less digits than its factorization.

378443178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3384 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 378443178 is about 19453.6160648862. The cubic root of 378443178 is about 723.3251408578.

It can be divided in two parts, 378 and 443178, that added together give a square (443556 = 666²).

The spelling of 378443178 in words is "three hundred seventy-eight million, four hundred forty-three thousand, one hundred seventy-eight".