420601441 has 4 divisors (see below), whose sum is σ = 452955412. Its totient is φ = 388247472.

The previous prime is 420601439. The next prime is 420601457. The reversal of 420601441 is 144106024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24750625 + 395850816 = 4975^2 + 19896^2 .

It is a cyclic number.

It is not a de Polignac number, because 420601441 - 2¹ = 420601439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420601241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16176966 + ... + 16176991.

It is an arithmetic number, because the mean of its divisors is an integer number (113238853).

Almost surely, 2^420601441 is an apocalyptic number.

It is an amenable number.

420601441 is a deficient number, since it is larger than the sum of its proper divisors (32353971).

420601441 is a wasteful number, since it uses less digits than its factorization.

420601441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32353970.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 420601441 is about 20508.5699403932. The cubic root of 420601441 is about 749.2445376614.

Adding to 420601441 its reverse (144106024), we get a palindrome (564707465).

The spelling of 420601441 in words is "four hundred twenty million, six hundred one thousand, four hundred forty-one".