228224369 has 2 divisors, whose sum is σ = 228224370. Its totient is φ = 228224368.

The previous prime is 228224357. The next prime is 228224383. The reversal of 228224369 is 963422822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 228010000 + 214369 = 15100^2 + 463^2 .

It is a cyclic number.

It is not a de Polignac number, because 228224369 - 2²⁴ = 211447153 is a prime.

It is a super-2 number, since 2×228224369² = 104172725210896322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (228224389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114112184 + 114112185.

It is an arithmetic number, because the mean of its divisors is an integer number (114112185).

Almost surely, 2^228224369 is an apocalyptic number.

It is an amenable number.

228224369 is a deficient number, since it is larger than the sum of its proper divisors (1).

228224369 is an equidigital number, since it uses as much as digits as its factorization.

228224369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 228224369 is about 15107.0966436308. The cubic root of 228224369 is about 611.1118028777. Note that the first 3 decimals are identical.

The spelling of 228224369 in words is "two hundred twenty-eight million, two hundred twenty-four thousand, three hundred sixty-nine".