420344059 has 2 divisors, whose sum is σ = 420344060. Its totient is φ = 420344058.

The previous prime is 420344039. The next prime is 420344117. The reversal of 420344059 is 950443024.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420344059 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420344059.

It is not a weakly prime, because it can be changed into another prime (420344039) 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, 210172029 + 210172030.

It is an arithmetic number, because the mean of its divisors is an integer number (210172030).

Almost surely, 2^420344059 is an apocalyptic number.

420344059 is a deficient number, since it is larger than the sum of its proper divisors (1).

420344059 is an equidigital number, since it uses as much as digits as its factorization.

420344059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 420344059 is about 20502.2939935998. The cubic root of 420344059 is about 749.0916760780.

The spelling of 420344059 in words is "four hundred twenty million, three hundred forty-four thousand, fifty-nine".