420442301 has 2 divisors, whose sum is σ = 420442302. Its totient is φ = 420442300.

The previous prime is 420442289. The next prime is 420442303. The reversal of 420442301 is 103244024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 353628025 + 66814276 = 18805^2 + 8174^2 .

It is a cyclic number.

It is not a de Polignac number, because 420442301 - 2²⁶ = 353333437 is a prime.

Together with 420442303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420442303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210221150 + 210221151.

It is an arithmetic number, because the mean of its divisors is an integer number (210221151).

Almost surely, 2^420442301 is an apocalyptic number.

It is an amenable number.

420442301 is a deficient number, since it is larger than the sum of its proper divisors (1).

420442301 is an equidigital number, since it uses as much as digits as its factorization.

420442301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 420442301 is about 20504.6897318638. The cubic root of 420442301 is about 749.1500302844.

Adding to 420442301 its reverse (103244024), we get a palindrome (523686325).

The spelling of 420442301 in words is "four hundred twenty million, four hundred forty-two thousand, three hundred one".