420244101 has 12 divisors (see below), whose sum is σ = 615569760. Its totient is φ = 276216360.

The previous prime is 420244081. The next prime is 420244127. The reversal of 420244101 is 101442024.

420244101 is a `hidden beast` number, since 420 + 244 + 1 + 0 + 1 = 666.

It is not a de Polignac number, because 420244101 - 2¹³ = 420235909 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420244151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328191 + ... + 329468.

It is an arithmetic number, because the mean of its divisors is an integer number (51297480).

Almost surely, 2^420244101 is an apocalyptic number.

It is an amenable number.

420244101 is a deficient number, since it is larger than the sum of its proper divisors (195325659).

420244101 is a wasteful number, since it uses less digits than its factorization.

420244101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657736 (or 657733 counting only the distinct ones).

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

The square root of 420244101 is about 20499.8561214463. The cubic root of 420244101 is about 749.0322932619.

Adding to 420244101 its reverse (101442024), we get a palindrome (521686125).

The spelling of 420244101 in words is "four hundred twenty million, two hundred forty-four thousand, one hundred one".