420344205 has 32 divisors (see below), whose sum is σ = 705576960. Its totient is φ = 213280320.

The previous prime is 420344191. The next prime is 420344209. The reversal of 420344205 is 502443024.

It is not a de Polignac number, because 420344205 - 2¹³ = 420336013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420344209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62706 + ... + 69084.

It is an arithmetic number, because the mean of its divisors is an integer number (22049280).

Almost surely, 2^420344205 is an apocalyptic number.

It is an amenable number.

420344205 is a deficient number, since it is larger than the sum of its proper divisors (285232755).

420344205 is a wasteful number, since it uses less digits than its factorization.

420344205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6601.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 420344205 is about 20502.2975541767. The cubic root of 420344205 is about 749.0917628065.

Adding to 420344205 its reverse (502443024), we get a palindrome (922787229).

The spelling of 420344205 in words is "four hundred twenty million, three hundred forty-four thousand, two hundred five".