228475 has 24 divisors (see below), whose sum is σ = 329840. Its totient is φ = 155520.

The previous prime is 228469. The next prime is 228479. The reversal of 228475 is 574822.

It is not a de Polignac number, because 228475 - 2⁵ = 228443 is a prime.

It is an Ulam number.

228475 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (228479) 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 23 ways as a sum of consecutive naturals, for example, 6157 + ... + 6193.

2²²⁸⁴⁷⁵ is an apocalyptic number.

228475 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228475 is a deficient number, since it is larger than the sum of its proper divisors (101365).

228475 is a wasteful number, since it uses less digits than its factorization.

228475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 74 counting only the distinct ones).

The product of its digits is 4480, while the sum is 28.

The square root of 228475 is about 477.9905856814. The cubic root of 228475 is about 61.1335424235.

It can be divided in two parts, 228 and 475, that added together give a triangular number (703 = T₃₇).

The spelling of 228475 in words is "two hundred twenty-eight thousand, four hundred seventy-five".