228480869 has 2 divisors, whose sum is σ = 228480870. Its totient is φ = 228480868.

The previous prime is 228480853. The next prime is 228480949. The reversal of 228480869 is 968084822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153016900 + 75463969 = 12370^2 + 8687^2 .

It is a cyclic number.

It is not a de Polignac number, because 228480869 - 2⁴ = 228480853 is a prime.

It is a super-2 number, since 2×228480869² = 104407014997990322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228480829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114240434 + 114240435.

It is an arithmetic number, because the mean of its divisors is an integer number (114240435).

Almost surely, 2^228480869 is an apocalyptic number.

It is an amenable number.

228480869 is a deficient number, since it is larger than the sum of its proper divisors (1).

228480869 is an equidigital number, since it uses as much as digits as its factorization.

228480869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 228480869 is about 15115.5836473489. The cubic root of 228480869 is about 611.3406587929.

The spelling of 228480869 in words is "two hundred twenty-eight million, four hundred eighty thousand, eight hundred sixty-nine".