228980449 has 4 divisors (see below), whose sum is σ = 234565380. Its totient is φ = 223395520.

The previous prime is 228980447. The next prime is 228980459. The reversal of 228980449 is 944089822.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10679824 + 218300625 = 3268^2 + 14775^2 .

It is a cyclic number.

It is not a de Polignac number, because 228980449 - 2¹ = 228980447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228980399 and 228980408.

It is not an unprimeable number, because it can be changed into a prime (228980441) 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 in 3 ways as a sum of consecutive naturals, for example, 2792404 + ... + 2792485.

It is an arithmetic number, because the mean of its divisors is an integer number (58641345).

Almost surely, 2^228980449 is an apocalyptic number.

It is an amenable number.

228980449 is a deficient number, since it is larger than the sum of its proper divisors (5584931).

228980449 is an equidigital number, since it uses as much as digits as its factorization.

228980449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584930.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 228980449 is about 15132.0999534103. The cubic root of 228980449 is about 611.7859057541.

The spelling of 228980449 in words is "two hundred twenty-eight million, nine hundred eighty thousand, four hundred forty-nine".