420759349 has 2 divisors, whose sum is σ = 420759350. Its totient is φ = 420759348.

The previous prime is 420759329. The next prime is 420759377. The reversal of 420759349 is 943957024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268730449 + 152028900 = 16393^2 + 12330^2 .

It is a cyclic number.

It is not a de Polignac number, because 420759349 - 2⁹ = 420758837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420759329) 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, 210379674 + 210379675.

It is an arithmetic number, because the mean of its divisors is an integer number (210379675).

Almost surely, 2^420759349 is an apocalyptic number.

It is an amenable number.

420759349 is a deficient number, since it is larger than the sum of its proper divisors (1).

420759349 is an equidigital number, since it uses as much as digits as its factorization.

420759349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 43.

The square root of 420759349 is about 20512.4193843632. The cubic root of 420759349 is about 749.3382898394.

The spelling of 420759349 in words is "four hundred twenty million, seven hundred fifty-nine thousand, three hundred forty-nine".