228635 has 8 divisors (see below), whose sum is σ = 299376. Its totient is φ = 166240.

The previous prime is 228619. The next prime is 228637. The reversal of 228635 is 536822.

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

It is not a de Polignac number, because 228635 - 2⁴ = 228619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024 + ... + 2133.

It is an arithmetic number, because the mean of its divisors is an integer number (37422).

2²²⁸⁶³⁵ is an apocalyptic number.

228635 is a deficient number, since it is larger than the sum of its proper divisors (70741).

228635 is a wasteful number, since it uses less digits than its factorization.

228635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4173.

The product of its digits is 2880, while the sum is 26.

The square root of 228635 is about 478.1579237030. The cubic root of 228635 is about 61.1478096072.

The spelling of 228635 in words is "two hundred twenty-eight thousand, six hundred thirty-five".