228237 has 4 divisors (see below), whose sum is σ = 304320. Its totient is φ = 152156.

The previous prime is 228233. The next prime is 228251. The reversal of 228237 is 732822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228237 - 2² = 228233 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 228237.

It is not an unprimeable number, because it can be changed into a prime (228233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38037 + ... + 38042.

It is an arithmetic number, because the mean of its divisors is an integer number (76080).

2²²⁸²³⁷ is an apocalyptic number.

It is an amenable number.

228237 is a deficient number, since it is larger than the sum of its proper divisors (76083).

228237 is an equidigital number, since it uses as much as digits as its factorization.

228237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76082.

The product of its digits is 1344, while the sum is 24.

The square root of 228237 is about 477.7415619349. The cubic root of 228237 is about 61.1123076595.

It can be divided in two parts, 228 and 237, that added together give a triangular number (465 = T₃₀).

The spelling of 228237 in words is "two hundred twenty-eight thousand, two hundred thirty-seven".