3881228 has 24 divisors (see below), whose sum is σ = 7397040. Its totient is φ = 1771200.

The previous prime is 3881221. The next prime is 3881239. The reversal of 3881228 is 8221883.

3881228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3881194 and 3881203.

It is not an unprimeable number, because it can be changed into a prime (3881221) by changing a digit.

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, 4883 + ... + 5621.

It is an arithmetic number, because the mean of its divisors is an integer number (308210).

Almost surely, 2^3881228 is an apocalyptic number.

It is an amenable number.

3881228 is a deficient number, since it is larger than the sum of its proper divisors (3515812).

3881228 is a wasteful number, since it uses less digits than its factorization.

3881228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its digits is 6144, while the sum is 32.

The square root of 3881228 is about 1970.0832469721. The cubic root of 3881228 is about 157.1531360455.

Multiplying 3881228 by its product of digits (6144), we get a palindrome (23846264832).

The spelling of 3881228 in words is "three million, eight hundred eighty-one thousand, two hundred twenty-eight".