378789648 has 80 divisors (see below), whose sum is σ = 1071895680. Its totient is φ = 114731008.

The previous prime is 378789647. The next prime is 378789667. The reversal of 378789648 is 846987873.

It is a junction number, because it is equal to n+sod(n) for n = 378789591 and 378789600.

It is not an unprimeable number, because it can be changed into a prime (378789647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15661 + ... + 31667.

It is an arithmetic number, because the mean of its divisors is an integer number (13398696).

Almost surely, 2^378789648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378789648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535947840).

378789648 is an abundant number, since it is smaller than the sum of its proper divisors (693106032).

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

378789648 is a wasteful number, since it uses less digits than its factorization.

378789648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16064 (or 16058 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The square root of 378789648 is about 19462.5190558674. The cubic root of 378789648 is about 723.5458116092.

The spelling of 378789648 in words is "three hundred seventy-eight million, seven hundred eighty-nine thousand, six hundred forty-eight".