228143816 has 32 divisors (see below), whose sum is σ = 432967680. Its totient is φ = 112694400.

The previous prime is 228143809. The next prime is 228143819. The reversal of 228143816 is 618341822.

It is not an unprimeable number, because it can be changed into a prime (228143819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437636 + ... + 438156.

It is an arithmetic number, because the mean of its divisors is an integer number (13530240).

Almost surely, 2^228143816 is an apocalyptic number.

It is an amenable number.

228143816 is a deficient number, since it is larger than the sum of its proper divisors (204823864).

228143816 is a wasteful number, since it uses less digits than its factorization.

228143816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1085 (or 1081 counting only the distinct ones).

The product of its digits is 18432, while the sum is 35.

The square root of 228143816 is about 15104.4303434456. The cubic root of 228143816 is about 611.0398960344.

The spelling of 228143816 in words is "two hundred twenty-eight million, one hundred forty-three thousand, eight hundred sixteen".