228351 has 8 divisors (see below), whose sum is σ = 307840. Its totient is φ = 150552.

The previous prime is 228341. The next prime is 228353. The reversal of 228351 is 153822.

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

It is not a de Polignac number, because 228351 - 2⁷ = 228223 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228353) 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, 61 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (38480).

2²²⁸³⁵¹ is an apocalyptic number.

228351 is a deficient number, since it is larger than the sum of its proper divisors (79489).

228351 is a wasteful number, since it uses less digits than its factorization.

228351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its digits is 480, while the sum is 21.

The square root of 228351 is about 477.8608584096. The cubic root of 228351 is about 61.1224807741.

Subtracting from 228351 its reverse (153822), we obtain a square (74529 = 273²).

The spelling of 228351 in words is "two hundred twenty-eight thousand, three hundred fifty-one".