8418228 has 72 divisors (see below), whose sum is σ = 24349248. Its totient is φ = 2216448.

The previous prime is 8418227. The next prime is 8418233. The reversal of 8418228 is 8228148.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8418227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13900 + ... + 14492.

It is an arithmetic number, because the mean of its divisors is an integer number (338184).

Almost surely, 2^8418228 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 8418228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12174624).

8418228 is an abundant number, since it is smaller than the sum of its proper divisors (15931020).

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

8418228 is a wasteful number, since it uses less digits than its factorization.

8418228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 618 counting only the distinct ones).

The product of its digits is 8192, while the sum is 33.

The square root of 8418228 is about 2901.4182738792. The cubic root of 8418228 is about 203.4262038060.

It can be divided in two parts, 8418 and 228, that added together give a triangular number (8646 = T₁₃₁).

The spelling of 8418228 in words is "eight million, four hundred eighteen thousand, two hundred twenty-eight".