228532 has 24 divisors (see below), whose sum is σ = 439040. Its totient is φ = 103680.

The previous prime is 228523. The next prime is 228539. The reversal of 228532 is 235822.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228539) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2308 + ... + 2404.

2²²⁸⁵³² is an apocalyptic number.

It is an amenable number.

228532 is a deficient number, since it is larger than the sum of its proper divisors (210508).

228532 is a wasteful number, since it uses less digits than its factorization.

228532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 149 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 228532 is about 478.0502065683. The cubic root of 228532 is about 61.1386258713.

The spelling of 228532 in words is "two hundred twenty-eight thousand, five hundred thirty-two".