3881512 has 16 divisors (see below), whose sum is σ = 7299360. Its totient is φ = 1935024.

The previous prime is 3881509. The next prime is 3881543. The reversal of 3881512 is 2151883.

3881512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3881512² = 30132270812288, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 3933 + ... + 4819.

It is an arithmetic number, because the mean of its divisors is an integer number (456210).

Almost surely, 2^3881512 is an apocalyptic number.

It is an amenable number.

3881512 is a deficient number, since it is larger than the sum of its proper divisors (3417848).

3881512 is a wasteful number, since it uses less digits than its factorization.

3881512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1436 counting only the distinct ones).

The product of its digits is 1920, while the sum is 28.

The square root of 3881512 is about 1970.1553238260. The cubic root of 3881512 is about 157.1569690593.

The spelling of 3881512 in words is "three million, eight hundred eighty-one thousand, five hundred twelve".