378747844 has 6 divisors (see below), whose sum is σ = 662808734. Its totient is φ = 189373920.

The previous prime is 378747829. The next prime is 378747857. The reversal of 378747844 is 448747873.

378747844 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 236852100 + 141895744 = 15390^2 + 11912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 378747791 and 378747800.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47343477 + ... + 47343484.

Almost surely, 2^378747844 is an apocalyptic number.

It is an amenable number.

378747844 is a deficient number, since it is larger than the sum of its proper divisors (284060890).

378747844 is a wasteful number, since it uses less digits than its factorization.

378747844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94686965 (or 94686963 counting only the distinct ones).

The product of its digits is 4214784, while the sum is 52.

The square root of 378747844 is about 19461.4450645372. The cubic root of 378747844 is about 723.5191932982.

The spelling of 378747844 in words is "three hundred seventy-eight million, seven hundred forty-seven thousand, eight hundred forty-four".