228293 has 8 divisors (see below), whose sum is σ = 260568. Its totient is φ = 198144.

The previous prime is 228281. The next prime is 228299. The reversal of 228293 is 392822.

It can be written as a sum of positive squares in 4 ways, for example, as 82369 + 145924 = 287^2 + 382^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 228293 - 2¹² = 224197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228299) 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, 296 + ... + 737.

It is an arithmetic number, because the mean of its divisors is an integer number (32571).

2²²⁸²⁹³ is an apocalyptic number.

It is an amenable number.

228293 is a deficient number, since it is larger than the sum of its proper divisors (32275).

228293 is a wasteful number, since it uses less digits than its factorization.

228293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063.

The product of its digits is 1728, while the sum is 26.

The square root of 228293 is about 477.8001674340. The cubic root of 228293 is about 61.1173054021.

It can be divided in two parts, 2282 and 93, that multiplied together give a triangular number (212226 = T₆₅₁).

The spelling of 228293 in words is "two hundred twenty-eight thousand, two hundred ninety-three".