228144443 has 2 divisors, whose sum is σ = 228144444. Its totient is φ = 228144442.

The previous prime is 228144409. The next prime is 228144461. The reversal of 228144443 is 344441822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228144443 - 2²⁰ = 227095867 is a prime.

It is not a weakly prime, because it can be changed into another prime (228144473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114072221 + 114072222.

It is an arithmetic number, because the mean of its divisors is an integer number (114072222).

Almost surely, 2^228144443 is an apocalyptic number.

228144443 is a deficient number, since it is larger than the sum of its proper divisors (1).

228144443 is an equidigital number, since it uses as much as digits as its factorization.

228144443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24576, while the sum is 32.

The square root of 228144443 is about 15104.4510989311. The cubic root of 228144443 is about 611.0404558007.

The spelling of 228144443 in words is "two hundred twenty-eight million, one hundred forty-four thousand, four hundred forty-three".