228995 has 12 divisors (see below), whose sum is σ = 298656. Its totient is φ = 168480.

The previous prime is 228989. The next prime is 229003. The reversal of 228995 is 599822.

It is a de Polignac number, because none of the positive numbers 2^k-228995 is a prime.

It is a d-powerful number, because it can be written as 2 + 2 + 9⁵ + 8⁵ + 9⁵ + 5⁷ .

It is a Duffinian number.

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, 710 + ... + 980.

It is an arithmetic number, because the mean of its divisors is an integer number (24888).

2²²⁸⁹⁹⁵ is an apocalyptic number.

228995 is a deficient number, since it is larger than the sum of its proper divisors (69661).

228995 is a wasteful number, since it uses less digits than its factorization.

228995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 289 counting only the distinct ones).

The product of its digits is 12960, while the sum is 35.

The square root of 228995 is about 478.5342203020. The cubic root of 228995 is about 61.1798864514.

The spelling of 228995 in words is "two hundred twenty-eight thousand, nine hundred ninety-five".