1328004229 has 2 divisors, whose sum is σ = 1328004230. Its totient is φ = 1328004228.

The previous prime is 1328004173. The next prime is 1328004277. The reversal of 1328004229 is 9224008231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1327144900 + 859329 = 36430^2 + 927^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328004229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1328004229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328004289) 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, 664002114 + 664002115.

It is an arithmetic number, because the mean of its divisors is an integer number (664002115).

Almost surely, 2^1328004229 is an apocalyptic number.

It is an amenable number.

1328004229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328004229 is an equidigital number, since it uses as much as digits as its factorization.

1328004229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 1328004229 is about 36441.7923406629. The cubic root of 1328004229 is about 1099.1740987854.

The spelling of 1328004229 in words is "one billion, three hundred twenty-eight million, four thousand, two hundred twenty-nine".