228574 has 8 divisors (see below), whose sum is σ = 357840. Its totient is φ = 109296.

The previous prime is 228559. The next prime is 228577. The reversal of 228574 is 475822.

228574 = 20² + 21² + ... + 88².

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

It is a d-powerful number, because it can be written as 2³ + 2¹⁵ + 5⁷ + 8 + 7⁶ + 4² .

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 (228577) by changing a digit.

228574 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 3 ways as a sum of consecutive naturals, for example, 2439 + ... + 2530.

It is an arithmetic number, because the mean of its divisors is an integer number (44730).

2²²⁸⁵⁷⁴ is an apocalyptic number.

228574 is a deficient number, since it is larger than the sum of its proper divisors (129266).

228574 is a wasteful number, since it uses less digits than its factorization.

228574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4994.

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

The square root of 228574 is about 478.0941329906. The cubic root of 228574 is about 61.1423710287.

The spelling of 228574 in words is "two hundred twenty-eight thousand, five hundred seventy-four".