228957 has 8 divisors (see below), whose sum is σ = 307776. Its totient is φ = 151392.

The previous prime is 228953. The next prime is 228959. The reversal of 228957 is 759822.

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

It is not a de Polignac number, because 228957 - 2² = 228953 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 273 + ... + 729.

It is an arithmetic number, because the mean of its divisors is an integer number (38472).

2²²⁸⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

228957 is a deficient number, since it is larger than the sum of its proper divisors (78819).

228957 is a wasteful number, since it uses less digits than its factorization.

228957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627.

The product of its digits is 10080, while the sum is 33.

The square root of 228957 is about 478.4945140751. The cubic root of 228957 is about 61.1765021500.

It can be divided in two parts, 2289 and 57, that added together give a triangular number (2346 = T₆₈).

The spelling of 228957 in words is "two hundred twenty-eight thousand, nine hundred fifty-seven".