420424101 has 10 divisors (see below), whose sum is σ = 628041062. Its totient is φ = 280282680.

The previous prime is 420424073. The next prime is 420424111. The reversal of 420424101 is 101424024.

420424101 is a `hidden beast` number, since 420 + 4 + 241 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 328551876 + 91872225 = 18126^2 + 9585^2 .

It is not a de Polignac number, because 420424101 - 2⁷ = 420423973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420424111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2595130 + ... + 2595291.

Almost surely, 2^420424101 is an apocalyptic number.

It is an amenable number.

420424101 is a deficient number, since it is larger than the sum of its proper divisors (207616961).

420424101 is an equidigital number, since it uses as much as digits as its factorization.

420424101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5190433 (or 5190424 counting only the distinct ones).

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

The square root of 420424101 is about 20504.2459261491. The cubic root of 420424101 is about 749.1392204561.

Adding to 420424101 its reverse (101424024), we get a palindrome (521848125).

The spelling of 420424101 in words is "four hundred twenty million, four hundred twenty-four thousand, one hundred one".