420241 has 2 divisors, whose sum is σ = 420242. Its totient is φ = 420240.

The previous prime is 420221. The next prime is 420253. The reversal of 420241 is 142024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355216 + 65025 = 596^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 420241 - 2¹⁷ = 289169 is a prime.

It is not a weakly prime, because it can be changed into another prime (420221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210120 + 210121.

It is an arithmetic number, because the mean of its divisors is an integer number (210121).

2⁴²⁰²⁴¹ is an apocalyptic number.

It is an amenable number.

420241 is a deficient number, since it is larger than the sum of its proper divisors (1).

420241 is an equidigital number, since it uses as much as digits as its factorization.

420241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 420241 is about 648.2599787122. The cubic root of 420241 is about 74.9030450876.

Adding to 420241 its reverse (142024), we get a palindrome (562265).

It can be divided in two parts, 42024 and 1, that added together give a square (42025 = 205²).

The spelling of 420241 in words is "four hundred twenty thousand, two hundred forty-one", and thus it is an iban number.