201420441 has 6 divisors (see below), whose sum is σ = 290940650. Its totient is φ = 134280288.

The previous prime is 201420431. The next prime is 201420449. The reversal of 201420441 is 144024102.

201420441 is a `hidden beast` number, since 201 + 4 + 20 + 441 = 666.

It can be written as a sum of positive squares in only one way, i.e., 174794841 + 26625600 = 13221^2 + 5160^2 .

It is not a de Polignac number, because 201420441 - 2⁶ = 201420377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201420449) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11190016 + ... + 11190033.

Almost surely, 2^201420441 is an apocalyptic number.

It is an amenable number.

201420441 is a deficient number, since it is larger than the sum of its proper divisors (89520209).

201420441 is a wasteful number, since it uses less digits than its factorization.

201420441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22380055 (or 22380052 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 201420441 is about 14192.2669436563. The cubic root of 201420441 is about 586.1847478228.

Adding to 201420441 its reverse (144024102), we get a palindrome (345444543).

The spelling of 201420441 in words is "two hundred one million, four hundred twenty thousand, four hundred forty-one".