3420228 has 48 divisors (see below), whose sum is σ = 9605120. Its totient is φ = 925344.

The previous prime is 3420227. The next prime is 3420239. The reversal of 3420228 is 8220243.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (3420227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 525 + ... + 2667.

Almost surely, 2^3420228 is an apocalyptic number.

3420228 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3420228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4802560).

3420228 is an abundant number, since it is smaller than the sum of its proper divisors (6184892).

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

3420228 is a wasteful number, since it uses less digits than its factorization.

3420228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2176 (or 2174 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3420228 is about 1849.3858440034. The cubic root of 3420228 is about 150.6670734668.

The spelling of 3420228 in words is "three million, four hundred twenty thousand, two hundred twenty-eight".