420944201 has 2 divisors, whose sum is σ = 420944202. Its totient is φ = 420944200.

The previous prime is 420944177. The next prime is 420944219. The reversal of 420944201 is 102449024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403969801 + 16974400 = 20099^2 + 4120^2 .

It is a cyclic number.

It is not a de Polignac number, because 420944201 - 2¹⁰ = 420943177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420944231) 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, 210472100 + 210472101.

It is an arithmetic number, because the mean of its divisors is an integer number (210472101).

Almost surely, 2^420944201 is an apocalyptic number.

It is an amenable number.

420944201 is a deficient number, since it is larger than the sum of its proper divisors (1).

420944201 is an equidigital number, since it uses as much as digits as its factorization.

420944201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 420944201 is about 20516.9247451951. The cubic root of 420944201 is about 749.4480092487.

The spelling of 420944201 in words is "four hundred twenty million, nine hundred forty-four thousand, two hundred one".