228144841 has 4 divisors (see below), whose sum is σ = 235504384. Its totient is φ = 220785300.

The previous prime is 228144823. The next prime is 228144857. The reversal of 228144841 is 148441822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 148441822 = 2 ⋅74220911.

It is a cyclic number.

It is not a de Polignac number, because 228144841 - 2¹⁹ = 227620553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228144797 and 228144806.

It is not an unprimeable number, because it can be changed into a prime (228144871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3679725 + ... + 3679786.

It is an arithmetic number, because the mean of its divisors is an integer number (58876096).

Almost surely, 2^228144841 is an apocalyptic number.

It is an amenable number.

228144841 is a deficient number, since it is larger than the sum of its proper divisors (7359543).

228144841 is an equidigital number, since it uses as much as digits as its factorization.

228144841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7359542.

The product of its digits is 16384, while the sum is 34.

The square root of 228144841 is about 15104.4642738496. The cubic root of 228144841 is about 611.0408111223.

The spelling of 228144841 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred forty-one".