228334581 has 6 divisors (see below), whose sum is σ = 329816630. Its totient is φ = 152223048.

The previous prime is 228334567. The next prime is 228334619. The reversal of 228334581 is 185433822.

It can be written as a sum of positive squares in only one way, i.e., 176624100 + 51710481 = 13290^2 + 7191^2 .

It is not a de Polignac number, because 228334581 - 2⁵ = 228334549 is a prime.

It is a super-2 number, since 2×228334581² = 104273361760891122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228334541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12685246 + ... + 12685263.

Almost surely, 2^228334581 is an apocalyptic number.

It is an amenable number.

228334581 is a deficient number, since it is larger than the sum of its proper divisors (101482049).

228334581 is a wasteful number, since it uses less digits than its factorization.

228334581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25370515 (or 25370512 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 228334581 is about 15110.7438930054. The cubic root of 228334581 is about 611.2101578658.

It can be divided in two parts, 2283 and 34581, that added together give a square (36864 = 192²).

The spelling of 228334581 in words is "two hundred twenty-eight million, three hundred thirty-four thousand, five hundred eighty-one".