4320040409 has 2 divisors, whose sum is σ = 4320040410. Its totient is φ = 4320040408.

The previous prime is 4320040379. The next prime is 4320040429. The reversal of 4320040409 is 9040400234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3958926400 + 361114009 = 62920^2 + 19003^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4320040409 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (4320040429) 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, 2160020204 + 2160020205.

It is an arithmetic number, because the mean of its divisors is an integer number (2160020205).

Almost surely, 2^4320040409 is an apocalyptic number.

It is an amenable number.

4320040409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4320040409 is an equidigital number, since it uses as much as digits as its factorization.

4320040409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 4320040409 is about 65727.0143015792. The cubic root of 4320040409 is about 1628.6556480384.

The spelling of 4320040409 in words is "four billion, three hundred twenty million, forty thousand, four hundred nine".