2229402809 has 2 divisors, whose sum is σ = 2229402810. Its totient is φ = 2229402808.

The previous prime is 2229402803. The next prime is 2229402827. The reversal of 2229402809 is 9082049222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1778477584 + 450925225 = 42172^2 + 21235^2 .

It is a cyclic number.

It is not a de Polignac number, because 2229402809 - 2⁴ = 2229402793 is a prime.

It is not a weakly prime, because it can be changed into another prime (2229402803) 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 as a sum of consecutive naturals, namely, 1114701404 + 1114701405.

It is an arithmetic number, because the mean of its divisors is an integer number (1114701405).

Almost surely, 2^2229402809 is an apocalyptic number.

It is an amenable number.

2229402809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2229402809 is an equidigital number, since it uses as much as digits as its factorization.

2229402809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 2229402809 is about 47216.5522777765. The cubic root of 2229402809 is about 1306.3599215389.

The spelling of 2229402809 in words is "two billion, two hundred twenty-nine million, four hundred two thousand, eight hundred nine".