8390228 has 24 divisors (see below), whose sum is σ = 18306624. Its totient is φ = 3268800.

The previous prime is 8390227. The next prime is 8390233. The reversal of 8390228 is 8220938.

It is a happy number.

It is a d-powerful number, because it can be written as 8³ + 3 + 9² + 0 + 2⁹ + 2²³ + 8³ .

It is a junction number, because it is equal to n+sod(n) for n = 8390194 and 8390203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8390227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13313 + ... + 13928.

It is an arithmetic number, because the mean of its divisors is an integer number (762776).

Almost surely, 2^8390228 is an apocalyptic number.

It is an amenable number.

8390228 is an abundant number, since it is smaller than the sum of its proper divisors (9916396).

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

8390228 is a wasteful number, since it uses less digits than its factorization.

8390228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27263 (or 27261 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 8390228 is about 2896.5890284954. The cubic root of 8390228 is about 203.2004135917.

It can be divided in two parts, 839022 and 8, that multiplied together give a palindrome (6712176).

The spelling of 8390228 in words is "eight million, three hundred ninety thousand, two hundred twenty-eight".