818241228 has 36 divisors (see below), whose sum is σ = 2363808720. Its totient is φ = 233783136.

The previous prime is 818241197. The next prime is 818241239. The reversal of 818241228 is 822142818.

818241228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 818241192 and 818241201.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1623243 + ... + 1623746.

Almost surely, 2^818241228 is an apocalyptic number.

It is an amenable number.

818241228 is an abundant number, since it is smaller than the sum of its proper divisors (1545567492).

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

818241228 is a wasteful number, since it uses less digits than its factorization.

818241228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247006 (or 3247001 counting only the distinct ones).

The product of its digits is 16384, while the sum is 36.

The square root of 818241228 is about 28604.9161508997. The cubic root of 818241228 is about 935.3204990472.

The spelling of 818241228 in words is "eight hundred eighteen million, two hundred forty-one thousand, two hundred twenty-eight".