3102228 has 72 divisors (see below), whose sum is σ = 8589672. Its totient is φ = 940032.

The previous prime is 3102227. The next prime is 3102233. The reversal of 3102228 is 8222013.

It is a happy number.

3102228 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 4 ways, for example, as 1633284 + 1468944 = 1278^2 + 1212^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3102228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3102223) 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 23 ways as a sum of consecutive naturals, for example, 22576 + ... + 22712.

It is an arithmetic number, because the mean of its divisors is an integer number (119301).

Almost surely, 2^3102228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3102228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4294836).

3102228 is an abundant number, since it is smaller than the sum of its proper divisors (5487444).

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

3102228 is a wasteful number, since it uses less digits than its factorization.

3102228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3102228 is about 1761.3142820065. The cubic root of 3102228 is about 145.8448968971.

The spelling of 3102228 in words is "three million, one hundred two thousand, two hundred twenty-eight".