420120204 has 24 divisors (see below), whose sum is σ = 1120320768. Its totient is φ = 120034320.

The previous prime is 420120193. The next prime is 420120209. The reversal of 420120204 is 402021024.

It is not an unprimeable number, because it can be changed into a prime (420120209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2500632 + ... + 2500799.

It is an arithmetic number, because the mean of its divisors is an integer number (46680032).

Almost surely, 2^420120204 is an apocalyptic number.

It is an amenable number.

420120204 is an abundant number, since it is smaller than the sum of its proper divisors (700200564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420120204 is a wasteful number, since it uses less digits than its factorization.

420120204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001445 (or 5001443 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 420120204 is about 20496.8339994254. The cubic root of 420120204 is about 748.9586757498.

Adding to 420120204 its reverse (402021024), we get a palindrome (822141228).

The spelling of 420120204 in words is "four hundred twenty million, one hundred twenty thousand, two hundred four".