228750 has 40 divisors (see below), whose sum is σ = 581064. Its totient is φ = 60000.

The previous prime is 228737. The next prime is 228751. The reversal of 228750 is 57822.

228750 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 228750.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3720 + ... + 3780.

2²²⁸⁷⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 228750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290532).

228750 is an abundant number, since it is smaller than the sum of its proper divisors (352314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228750 is an equidigital number, since it uses as much as digits as its factorization.

228750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 228750 is about 478.2781617427. The cubic root of 228750 is about 61.1580600347.

The spelling of 228750 in words is "two hundred twenty-eight thousand, seven hundred fifty".