3866028 has 12 divisors (see below), whose sum is σ = 9020760. Its totient is φ = 1288672.

The previous prime is 3866011. The next prime is 3866033. The reversal of 3866028 is 8206683.

3866028 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 3866028.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161073 + ... + 161096.

It is an arithmetic number, because the mean of its divisors is an integer number (751730).

Almost surely, 2^3866028 is an apocalyptic number.

It is an amenable number.

3866028 is an abundant number, since it is smaller than the sum of its proper divisors (5154732).

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

3866028 is a wasteful number, since it uses less digits than its factorization.

3866028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322176 (or 322174 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 3866028 is about 1966.2217575848. The cubic root of 3866028 is about 156.9477154257.

It can be divided in two parts, 38 and 66028, that added together give a palindrome (66066).

The spelling of 3866028 in words is "three million, eight hundred sixty-six thousand, twenty-eight".