228718 has 24 divisors (see below), whose sum is σ = 428976. Its totient is φ = 89280.

The previous prime is 228713. The next prime is 228731. The reversal of 228718 is 817822.

228718 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228713) 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 11 ways as a sum of consecutive naturals, for example, 7363 + ... + 7393.

It is an arithmetic number, because the mean of its divisors is an integer number (17874).

2²²⁸⁷¹⁸ is an apocalyptic number.

228718 is a deficient number, since it is larger than the sum of its proper divisors (200258).

228718 is a wasteful number, since it uses less digits than its factorization.

228718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88 (or 57 counting only the distinct ones).

The product of its digits is 1792, while the sum is 28.

The square root of 228718 is about 478.2447072368. The cubic root of 228718 is about 61.1552080868.

It can be divided in two parts, 228 and 718, that added together give a triangular number (946 = T₄₃).

The spelling of 228718 in words is "two hundred twenty-eight thousand, seven hundred eighteen".