378286818 has 64 divisors (see below), whose sum is σ = 933472512. Its totient is φ = 99521280.

The previous prime is 378286813. The next prime is 378286849. The reversal of 378286818 is 818682873.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (378286813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 356008 + ... + 357068.

It is an arithmetic number, because the mean of its divisors is an integer number (14585508).

Almost surely, 2^378286818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378286818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466736256).

378286818 is an abundant number, since it is smaller than the sum of its proper divisors (555185694).

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

378286818 is a wasteful number, since it uses less digits than its factorization.

378286818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739.

The product of its digits is 1032192, while the sum is 51.

The square root of 378286818 is about 19449.5968595753. The cubic root of 378286818 is about 723.2255092570.

The spelling of 378286818 in words is "three hundred seventy-eight million, two hundred eighty-six thousand, eight hundred eighteen".