228843081 has 12 divisors (see below), whose sum is σ = 331380660. Its totient is φ = 152179200.

The previous prime is 228843059. The next prime is 228843127. The reversal of 228843081 is 180348822.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 133194681 + 95648400 = 11541^2 + 9780^2 .

It is not a de Polignac number, because 228843081 - 2⁹ = 228842569 is a prime.

It is a super-2 number, since 2×228843081² = 104738311443145122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228843281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28096 + ... + 35313.

It is an arithmetic number, because the mean of its divisors is an integer number (27615055).

Almost surely, 2^228843081 is an apocalyptic number.

It is an amenable number.

228843081 is a deficient number, since it is larger than the sum of its proper divisors (102537579).

228843081 is a wasteful number, since it uses less digits than its factorization.

228843081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63816 (or 63813 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 228843081 is about 15127.5603122248. The cubic root of 228843081 is about 611.6635421524.

It can be divided in two parts, 2288 and 43081, that added together give a square (45369 = 213²).

The spelling of 228843081 in words is "two hundred twenty-eight million, eight hundred forty-three thousand, eighty-one".