228245 has 8 divisors (see below), whose sum is σ = 276480. Its totient is φ = 180880.

The previous prime is 228233. The next prime is 228251. The reversal of 228245 is 542822.

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

It is not a de Polignac number, because 228245 - 2⁶ = 228181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 836 + ... + 1074.

It is an arithmetic number, because the mean of its divisors is an integer number (34560).

2²²⁸²⁴⁵ is an apocalyptic number.

It is an amenable number.

228245 is a deficient number, since it is larger than the sum of its proper divisors (48235).

228245 is a wasteful number, since it uses less digits than its factorization.

228245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435.

The product of its digits is 1280, while the sum is 23.

The square root of 228245 is about 477.7499345892. The cubic root of 228245 is about 61.1130216727.

The spelling of 228245 in words is "two hundred twenty-eight thousand, two hundred forty-five".