18896228 has 18 divisors (see below), whose sum is σ = 35809074. Its totient is φ = 8721024.

The previous prime is 18896183. The next prime is 18896237. The reversal of 18896228 is 82269881.

It can be written as a sum of positive squares in 3 ways, for example, as 2184484 + 16711744 = 1478^2 + 4088^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13301 + ... + 14652.

It is an arithmetic number, because the mean of its divisors is an integer number (1989393).

Almost surely, 2^18896228 is an apocalyptic number.

It is an amenable number.

18896228 is a deficient number, since it is larger than the sum of its proper divisors (16912846).

18896228 is a wasteful number, since it uses less digits than its factorization.

18896228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27983 (or 27968 counting only the distinct ones).

The product of its digits is 110592, while the sum is 44.

The square root of 18896228 is about 4346.9791809945. The cubic root of 18896228 is about 266.3534788470.

The spelling of 18896228 in words is "eighteen million, eight hundred ninety-six thousand, two hundred twenty-eight".