420416267 has 2 divisors, whose sum is σ = 420416268. Its totient is φ = 420416266.

The previous prime is 420416257. The next prime is 420416281. The reversal of 420416267 is 762614024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420416267 - 2¹⁰ = 420415243 is a prime.

It is not a weakly prime, because it can be changed into another prime (420416207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210208133 + 210208134.

It is an arithmetic number, because the mean of its divisors is an integer number (210208134).

Almost surely, 2^420416267 is an apocalyptic number.

420416267 is a deficient number, since it is larger than the sum of its proper divisors (1).

420416267 is an equidigital number, since it uses as much as digits as its factorization.

420416267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 420416267 is about 20504.0548916550. The cubic root of 420416267 is about 749.1345673823.

The spelling of 420416267 in words is "four hundred twenty million, four hundred sixteen thousand, two hundred sixty-seven".