3878032281 has 8 divisors (see below), whose sum is σ = 5171088000. Its totient is φ = 2585165712.

The previous prime is 3878032261. The next prime is 3878032303. The reversal of 3878032281 is 1822308783.

3878032281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3878032281 - 2¹⁰ = 3878031257 is a prime.

It is a super-2 number, since 2×3878032281² = 30078268744956125922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3878032211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10720 + ... + 88718.

It is an arithmetic number, because the mean of its divisors is an integer number (646386000).

Almost surely, 2^3878032281 is an apocalyptic number.

It is an amenable number.

3878032281 is a deficient number, since it is larger than the sum of its proper divisors (1293055719).

3878032281 is a wasteful number, since it uses less digits than its factorization.

3878032281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94575.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 3878032281 is about 62273.8490941422. The cubic root of 3878032281 is about 1571.0999204016.

The spelling of 3878032281 in words is "three billion, eight hundred seventy-eight million, thirty-two thousand, two hundred eighty-one".