3912228 has 36 divisors (see below), whose sum is σ = 9989980. Its totient is φ = 1290816.

The previous prime is 3912221. The next prime is 3912229. The reversal of 3912228 is 8222193.

It is a happy number.

3912228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3069504 + 842724 = 1752^2 + 918^2 .

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

It is not an unprimeable number, because it can be changed into a prime (3912221) 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 11 ways as a sum of consecutive naturals, for example, 3426 + ... + 4422.

Almost surely, 2^3912228 is an apocalyptic number.

It is an amenable number.

3912228 is an abundant number, since it is smaller than the sum of its proper divisors (6077752).

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

3912228 is a wasteful number, since it uses less digits than its factorization.

3912228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1116 (or 1111 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 3912228 is about 1977.9352871113. The cubic root of 3912228 is about 157.5704295745.

The spelling of 3912228 in words is "three million, nine hundred twelve thousand, two hundred twenty-eight".