6630228 has 48 divisors (see below), whose sum is σ = 18755520. Its totient is φ = 2008800.

The previous prime is 6630227. The next prime is 6630229. The reversal of 6630228 is 8220366.

6630228 is a `hidden beast` number, since 6 + 630 + 2 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (6630227) and next prime (6630229).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6630223) 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 15 ways as a sum of consecutive naturals, for example, 1603 + ... + 3978.

It is an arithmetic number, because the mean of its divisors is an integer number (390740).

Almost surely, 2^6630228 is an apocalyptic number.

It is an amenable number.

6630228 is an abundant number, since it is smaller than the sum of its proper divisors (12125292).

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

6630228 is a wasteful number, since it uses less digits than its factorization.

6630228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5605 (or 5597 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 6630228 is about 2574.9229114674. The cubic root of 6630228 is about 187.8636781477.

The spelling of 6630228 in words is "six million, six hundred thirty thousand, two hundred twenty-eight".