8155228 has 12 divisors (see below), whose sum is σ = 14620032. Its totient is φ = 3978080.

The previous prime is 8155193. The next prime is 8155229. The reversal of 8155228 is 8225518.

It is a self number, because there is not a number n which added to its sum of digits gives 8155228.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8155229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24700 + ... + 25027.

It is an arithmetic number, because the mean of its divisors is an integer number (1218336).

Almost surely, 2^8155228 is an apocalyptic number.

It is an amenable number.

8155228 is a deficient number, since it is larger than the sum of its proper divisors (6464804).

8155228 is a wasteful number, since it uses less digits than its factorization.

8155228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49772 (or 49770 counting only the distinct ones).

The product of its digits is 6400, while the sum is 31.

The square root of 8155228 is about 2855.7359821944. The cubic root of 8155228 is about 201.2852891321.

It can be divided in two parts, 8 and 155228, that added together give a square (155236 = 394²).

The spelling of 8155228 in words is "eight million, one hundred fifty-five thousand, two hundred twenty-eight".