420330307 has 2 divisors, whose sum is σ = 420330308. Its totient is φ = 420330306.

The previous prime is 420330257. The next prime is 420330349. The reversal of 420330307 is 703033024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420330307 - 2¹⁵ = 420297539 is a prime.

It is a super-3 number, since 3×420330307³ (a number of 27 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (420330377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210165153 + 210165154.

It is an arithmetic number, because the mean of its divisors is an integer number (210165154).

Almost surely, 2^420330307 is an apocalyptic number.

420330307 is a deficient number, since it is larger than the sum of its proper divisors (1).

420330307 is an equidigital number, since it uses as much as digits as its factorization.

420330307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 22.

The square root of 420330307 is about 20501.9586137520. The cubic root of 420330307 is about 749.0835068804.

The spelling of 420330307 in words is "four hundred twenty million, three hundred thirty thousand, three hundred seven".