228575 has 12 divisors (see below), whose sum is σ = 291648. Its totient is φ = 177600.

The previous prime is 228559. The next prime is 228577. The reversal of 228575 is 575822.

It is not a de Polignac number, because 228575 - 2⁴ = 228559 is a prime.

It is a d-powerful number, because it can be written as 2¹⁴ + 2¹⁴ + 5² + 8 + 7⁶ + 5⁷ .

It is a Duffinian 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 (228577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 914 + ... + 1136.

It is an arithmetic number, because the mean of its divisors is an integer number (24304).

2²²⁸⁵⁷⁵ is an apocalyptic number.

228575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228575 is a deficient number, since it is larger than the sum of its proper divisors (63073).

228575 is a wasteful number, since it uses less digits than its factorization.

228575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 269 counting only the distinct ones).

The product of its digits is 5600, while the sum is 29.

The square root of 228575 is about 478.0951788086. The cubic root of 228575 is about 61.1424601936.

The spelling of 228575 in words is "two hundred twenty-eight thousand, five hundred seventy-five".