420302441 has 16 divisors (see below), whose sum is σ = 480589200. Its totient is φ = 364136448.

The previous prime is 420302431. The next prime is 420302447. The reversal of 420302441 is 144203024.

It can be written as a sum of positive squares in 8 ways, for example, as 2958400 + 417344041 = 1720^2 + 20429^2 .

It is not a de Polignac number, because 420302441 - 2¹⁰ = 420301417 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (420302447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83525 + ... + 88413.

It is an arithmetic number, because the mean of its divisors is an integer number (30036825).

Almost surely, 2^420302441 is an apocalyptic number.

It is an amenable number.

420302441 is a deficient number, since it is larger than the sum of its proper divisors (60286759).

420302441 is a wasteful number, since it uses less digits than its factorization.

420302441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5308.

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

The square root of 420302441 is about 20501.2790088814. The cubic root of 420302441 is about 749.0669528973.

Adding to 420302441 its reverse (144203024), we get a palindrome (564505465).

The spelling of 420302441 in words is "four hundred twenty million, three hundred two thousand, four hundred forty-one".