6418228 has 6 divisors (see below), whose sum is σ = 11231906. Its totient is φ = 3209112.

The previous prime is 6418213. The next prime is 6418229. The reversal of 6418228 is 8228146.

It can be written as a sum of positive squares in only one way, i.e., 6290064 + 128164 = 2508^2 + 358^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6418228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6418229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 802275 + ... + 802282.

Almost surely, 2^6418228 is an apocalyptic number.

It is an amenable number.

6418228 is a deficient number, since it is larger than the sum of its proper divisors (4813678).

6418228 is a wasteful number, since it uses less digits than its factorization.

6418228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1604561 (or 1604559 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 6418228 is about 2533.4221914241. The cubic root of 6418228 is about 185.8396506038.

The spelling of 6418228 in words is "six million, four hundred eighteen thousand, two hundred twenty-eight".