228227818 has 16 divisors (see below), whose sum is σ = 421344000. Its totient is φ = 90287856.

The previous prime is 228227801. The next prime is 228227821. The reversal of 228227818 is 818722822.

It is a super-2 number, since 2×228227818² = 104175873818082248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626818 + ... + 627181.

It is an arithmetic number, because the mean of its divisors is an integer number (26334000).

Almost surely, 2^228227818 is an apocalyptic number.

228227818 is a deficient number, since it is larger than the sum of its proper divisors (193116182).

228227818 is a wasteful number, since it uses less digits than its factorization.

228227818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254021.

The product of its digits is 57344, while the sum is 40.

The square root of 228227818 is about 15107.2107948489. The cubic root of 228227818 is about 611.1148813015.

The spelling of 228227818 in words is "two hundred twenty-eight million, two hundred twenty-seven thousand, eight hundred eighteen".