3878742032 has 40 divisors (see below), whose sum is σ = 8680506912. Its totient is φ = 1659353600.

The previous prime is 3878742031. The next prime is 3878742071. The reversal of 3878742032 is 2302478783.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (3878742031) 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 7 ways as a sum of consecutive naturals, for example, 645194 + ... + 651177.

Almost surely, 2^3878742032 is an apocalyptic number.

It is an amenable number.

3878742032 is an abundant number, since it is smaller than the sum of its proper divisors (4801764880).

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

3878742032 is a wasteful number, since it uses less digits than its factorization.

3878742032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296407 (or 1296401 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 44.

The square root of 3878742032 is about 62279.5474614259. The cubic root of 3878742032 is about 1571.1957612507.

The spelling of 3878742032 in words is "three billion, eight hundred seventy-eight million, seven hundred forty-two thousand, thirty-two".