2229778043 has 2 divisors, whose sum is σ = 2229778044. Its totient is φ = 2229778042.

The previous prime is 2229778009. The next prime is 2229778073. The reversal of 2229778043 is 3408779222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2229778043 - 2¹⁰ = 2229777019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2229777985 and 2229778003.

It is not a weakly prime, because it can be changed into another prime (2229778073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1114889021 + 1114889022.

It is an arithmetic number, because the mean of its divisors is an integer number (1114889022).

Almost surely, 2^2229778043 is an apocalyptic number.

2229778043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2229778043 is an equidigital number, since it uses as much as digits as its factorization.

2229778043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 2229778043 is about 47220.5256535757. The cubic root of 2229778043 is about 1306.4332092011.

The spelling of 2229778043 in words is "two billion, two hundred twenty-nine million, seven hundred seventy-eight thousand, forty-three".