378191286 has 48 divisors (see below), whose sum is σ = 902311488. Its totient is φ = 113526000.

The previous prime is 378191273. The next prime is 378191329. The reversal of 378191286 is 682191873.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12261 + ... + 30111.

It is an arithmetic number, because the mean of its divisors is an integer number (18798156).

Almost surely, 2^378191286 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378191286, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (451155744).

378191286 is an abundant number, since it is smaller than the sum of its proper divisors (524120202).

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

378191286 is a wasteful number, since it uses less digits than its factorization.

378191286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17977 (or 17974 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 378191286 is about 19447.1408181254. The cubic root of 378191286 is about 723.1646233605.

The spelling of 378191286 in words is "three hundred seventy-eight million, one hundred ninety-one thousand, two hundred eighty-six".