228340771 has 2 divisors, whose sum is σ = 228340772. Its totient is φ = 228340770.

The previous prime is 228340747. The next prime is 228340781. The reversal of 228340771 is 177043822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228340771 - 2¹¹ = 228338723 is a prime.

It is not a weakly prime, because it can be changed into another prime (228340781) 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 as a sum of consecutive naturals, namely, 114170385 + 114170386.

It is an arithmetic number, because the mean of its divisors is an integer number (114170386).

Almost surely, 2^228340771 is an apocalyptic number.

228340771 is a deficient number, since it is larger than the sum of its proper divisors (1).

228340771 is an equidigital number, since it uses as much as digits as its factorization.

228340771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 228340771 is about 15110.9487127711. The cubic root of 228340771 is about 611.2156809841.

The spelling of 228340771 in words is "two hundred twenty-eight million, three hundred forty thousand, seven hundred seventy-one".