378032816 has 40 divisors (see below), whose sum is σ = 881134080. Its totient is φ = 153486144.

The previous prime is 378032803. The next prime is 378032821. The reversal of 378032816 is 618230873.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a self number, because there is not a number n which added to its sum of digits gives 378032816.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86696 + ... + 90951.

It is an arithmetic number, because the mean of its divisors is an integer number (22028352).

Almost surely, 2^378032816 is an apocalyptic number.

It is an amenable number.

378032816 is an abundant number, since it is smaller than the sum of its proper divisors (503101264).

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

378032816 is a wasteful number, since it uses less digits than its factorization.

378032816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177681 (or 177675 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 378032816 is about 19443.0660133632. The cubic root of 378032816 is about 723.0636022525.

The spelling of 378032816 in words is "three hundred seventy-eight million, thirty-two thousand, eight hundred sixteen".