228364849 has 2 divisors, whose sum is σ = 228364850. Its totient is φ = 228364848.

The previous prime is 228364813. The next prime is 228364867. The reversal of 228364849 is 948463822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 209004849 + 19360000 = 14457^2 + 4400^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228364849 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228364799 and 228364808.

It is not a weakly prime, because it can be changed into another prime (228368849) 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, 114182424 + 114182425.

It is an arithmetic number, because the mean of its divisors is an integer number (114182425).

Almost surely, 2^228364849 is an apocalyptic number.

It is an amenable number.

228364849 is a deficient number, since it is larger than the sum of its proper divisors (1).

228364849 is an equidigital number, since it uses as much as digits as its factorization.

228364849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 46.

The square root of 228364849 is about 15111.7453988611. The cubic root of 228364849 is about 611.2371639834.

The spelling of 228364849 in words is "two hundred twenty-eight million, three hundred sixty-four thousand, eight hundred forty-nine".