420305202 has 24 divisors (see below), whose sum is σ = 919176336. Its totient is φ = 138791736.

The previous prime is 420305191. The next prime is 420305219. The reversal of 420305202 is 202503024.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107188 + ... + 111039.

It is an arithmetic number, because the mean of its divisors is an integer number (38299014).

Almost surely, 2^420305202 is an apocalyptic number.

420305202 is an abundant number, since it is smaller than the sum of its proper divisors (498871134).

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

420305202 is a wasteful number, since it uses less digits than its factorization.

420305202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218342 (or 218339 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 420305202 is about 20501.3463460330. The cubic root of 420305202 is about 749.0685931205.

Adding to 420305202 its reverse (202503024), we get a palindrome (622808226).

The spelling of 420305202 in words is "four hundred twenty million, three hundred five thousand, two hundred two".