228444841 has 2 divisors, whose sum is σ = 228444842. Its totient is φ = 228444840.

The previous prime is 228444791. The next prime is 228444857. The reversal of 228444841 is 148444822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 224850025 + 3594816 = 14995^2 + 1896^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228444841 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228444841.

It is not a weakly prime, because it can be changed into another prime (228444241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114222420 + 114222421.

It is an arithmetic number, because the mean of its divisors is an integer number (114222421).

Almost surely, 2^228444841 is an apocalyptic number.

It is an amenable number.

228444841 is a deficient number, since it is larger than the sum of its proper divisors (1).

228444841 is an equidigital number, since it uses as much as digits as its factorization.

228444841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65536, while the sum is 37.

The square root of 228444841 is about 15114.3918501539. The cubic root of 228444841 is about 611.3085240251.

The spelling of 228444841 in words is "two hundred twenty-eight million, four hundred forty-four thousand, eight hundred forty-one".