3966228 has 36 divisors (see below), whose sum is σ = 11458720. Its totient is φ = 1133136.

The previous prime is 3966223. The next prime is 3966229. The reversal of 3966228 is 8226693.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3966192 and 3966201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7618 + ... + 8121.

Almost surely, 2^3966228 is an apocalyptic number.

It is an amenable number.

3966228 is an abundant number, since it is smaller than the sum of its proper divisors (7492492).

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

3966228 is a wasteful number, since it uses less digits than its factorization.

3966228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15756 (or 15751 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 3966228 is about 1991.5391033068. The cubic root of 3966228 is about 158.2920944000.

The spelling of 3966228 in words is "three million, nine hundred sixty-six thousand, two hundred twenty-eight".