3878371328 has 120 divisors (see below), whose sum is σ = 8477478240. Its totient is φ = 1763573760.

The previous prime is 3878371291. The next prime is 3878371337. The reversal of 3878371328 is 8231738783.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 27901883 + ... + 27902021.

It is an arithmetic number, because the mean of its divisors is an integer number (70645652).

Almost surely, 2^3878371328 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 3878371328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4238739120).

3878371328 is an abundant number, since it is smaller than the sum of its proper divisors (4599106912).

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

3878371328 is a wasteful number, since it uses less digits than its factorization.

3878371328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311 (or 285 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 3878371328 is about 62276.5712607880. The cubic root of 3878371328 is about 1571.1457048918.

The spelling of 3878371328 in words is "three billion, eight hundred seventy-eight million, three hundred seventy-one thousand, three hundred twenty-eight".