420140202 has 16 divisors (see below), whose sum is σ = 860775552. Its totient is φ = 136630880.

The previous prime is 420140177. The next prime is 420140209. The reversal of 420140202 is 202041024.

It is not an unprimeable number, because it can be changed into a prime (420140209) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 853698 + ... + 854189.

It is an arithmetic number, because the mean of its divisors is an integer number (53798472).

Almost surely, 2^420140202 is an apocalyptic number.

420140202 is an abundant number, since it is smaller than the sum of its proper divisors (440635350).

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

420140202 is a wasteful number, since it uses less digits than its factorization.

420140202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1707933.

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

The square root of 420140202 is about 20497.3218250580. The cubic root of 420140202 is about 748.9705592042.

Adding to 420140202 its reverse (202041024), we get a palindrome (622181226).

The spelling of 420140202 in words is "four hundred twenty million, one hundred forty thousand, two hundred two".