228667418 has 24 divisors (see below), whose sum is σ = 399592800. Its totient is φ = 97855128.

The previous prime is 228667393. The next prime is 228667423. The reversal of 228667418 is 814766822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88793 + ... + 91331.

It is an arithmetic number, because the mean of its divisors is an integer number (16649700).

Almost surely, 2^228667418 is an apocalyptic number.

228667418 is a deficient number, since it is larger than the sum of its proper divisors (170925382).

228667418 is a wasteful number, since it uses less digits than its factorization.

228667418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3474 (or 3467 counting only the distinct ones).

The product of its digits is 258048, while the sum is 44.

The square root of 228667418 is about 15121.7531391039. The cubic root of 228667418 is about 611.5069950597.

The spelling of 228667418 in words is "two hundred twenty-eight million, six hundred sixty-seven thousand, four hundred eighteen".