3881406393 has 48 divisors (see below), whose sum is σ = 6043710400. Its totient is φ = 2392986240.

The previous prime is 3881406383. The next prime is 3881406407. The reversal of 3881406393 is 3936041883.

3881406393 is a `hidden beast` number, since 3 + 8 + 8 + 1 + 4 + 0 + 639 + 3 = 666.

It is not a de Polignac number, because 3881406393 - 2⁶ = 3881406329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3881406383) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1448571 + ... + 1451247.

Almost surely, 2^3881406393 is an apocalyptic number.

It is an amenable number.

3881406393 is a deficient number, since it is larger than the sum of its proper divisors (2162304007).

3881406393 is a wasteful number, since it uses less digits than its factorization.

3881406393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902 (or 2899 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 3881406393 is about 62300.9341262232. The cubic root of 3881406393 is about 1571.5554375335. Note that the first 3 decimals are identical.

The spelling of 3881406393 in words is "three billion, eight hundred eighty-one million, four hundred six thousand, three hundred ninety-three".