8400228 has 24 divisors (see below), whose sum is σ = 19850880. Its totient is φ = 2764320.

The previous prime is 8400211. The next prime is 8400229. The reversal of 8400228 is 8220048.

8400228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 8400198 and 8400207.

It is not an unprimeable number, because it can be changed into a prime (8400229) 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, 3483 + ... + 5378.

It is an arithmetic number, because the mean of its divisors is an integer number (827120).

Almost surely, 2^8400228 is an apocalyptic number.

It is an amenable number.

8400228 is an abundant number, since it is smaller than the sum of its proper divisors (11450652).

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

8400228 is a wasteful number, since it uses less digits than its factorization.

8400228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8947 (or 8945 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 8400228 is about 2898.3146827079. The cubic root of 8400228 is about 203.2811105397.

The spelling of 8400228 in words is "eight million, four hundred thousand, two hundred twenty-eight".