420318463 has 2 divisors, whose sum is σ = 420318464. Its totient is φ = 420318462.

The previous prime is 420318449. The next prime is 420318467. The reversal of 420318463 is 364813024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420318463 - 2⁹ = 420317951 is a prime.

It is a super-2 number, since 2×420318463² = 353335220677364738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420318467) 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, 210159231 + 210159232.

It is an arithmetic number, because the mean of its divisors is an integer number (210159232).

Almost surely, 2^420318463 is an apocalyptic number.

420318463 is a deficient number, since it is larger than the sum of its proper divisors (1).

420318463 is an equidigital number, since it uses as much as digits as its factorization.

420318463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 420318463 is about 20501.6697612658. The cubic root of 420318463 is about 749.0764709626.

The spelling of 420318463 in words is "four hundred twenty million, three hundred eighteen thousand, four hundred sixty-three".