228466 has 8 divisors (see below), whose sum is σ = 391680. Its totient is φ = 97908.

The previous prime is 228461. The next prime is 228469. The reversal of 228466 is 664822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (228461) by changing a digit.

228466 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 8146 + ... + 8173.

It is an arithmetic number, because the mean of its divisors is an integer number (48960).

2²²⁸⁴⁶⁶ is an apocalyptic number.

228466 is a deficient number, since it is larger than the sum of its proper divisors (163214).

228466 is a wasteful number, since it uses less digits than its factorization.

228466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16328.

The product of its digits is 4608, while the sum is 28.

The square root of 228466 is about 477.9811711773. The cubic root of 228466 is about 61.1327396966.

The spelling of 228466 in words is "two hundred twenty-eight thousand, four hundred sixty-six".