228045 has 16 divisors (see below), whose sum is σ = 381312. Its totient is φ = 116160.

The previous prime is 228023. The next prime is 228049. The reversal of 228045 is 540822.

It is not a de Polignac number, because 228045 - 2⁵ = 228013 is a prime.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15 + ... + 675.

It is an arithmetic number, because the mean of its divisors is an integer number (23832).

2²²⁸⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

228045 is a deficient number, since it is larger than the sum of its proper divisors (153267).

228045 is a wasteful number, since it uses less digits than its factorization.

228045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 228045 is about 477.5405741924. The cubic root of 228045 is about 61.0951663329.

Adding to 228045 its reverse (540822), we get a palindrome (768867).

The spelling of 228045 in words is "two hundred twenty-eight thousand, forty-five".