228338533 has 2 divisors, whose sum is σ = 228338534. Its totient is φ = 228338532.

The previous prime is 228338527. The next prime is 228338567. The reversal of 228338533 is 335833822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226743364 + 1595169 = 15058^2 + 1263^2 .

It is a cyclic number.

It is not a de Polignac number, because 228338533 - 2⁹ = 228338021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228338492 and 228338501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228318533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114169266 + 114169267.

It is an arithmetic number, because the mean of its divisors is an integer number (114169267).

Almost surely, 2^228338533 is an apocalyptic number.

It is an amenable number.

228338533 is a deficient number, since it is larger than the sum of its proper divisors (1).

228338533 is an equidigital number, since it uses as much as digits as its factorization.

228338533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 37.

The square root of 228338533 is about 15110.8746603233. The cubic root of 228338533 is about 611.2136841073.

The spelling of 228338533 in words is "two hundred twenty-eight million, three hundred thirty-eight thousand, five hundred thirty-three".