420140240202 has 32 divisors (see below), whose sum is σ = 844134209280. Its totient is φ = 139404726720.

The previous prime is 420140240189. The next prime is 420140240227. The reversal of 420140240202 is 202042041024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6760752 + ... + 6822612.

It is an arithmetic number, because the mean of its divisors is an integer number (26379194040).

Almost surely, 2^420140240202 is an apocalyptic number.

420140240202 is an abundant number, since it is smaller than the sum of its proper divisors (423993969078).

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

420140240202 is a wasteful number, since it uses less digits than its factorization.

420140240202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67038.

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 420140240202 its reverse (202042041024), we get a palindrome (622182281226).

The spelling of 420140240202 in words is "four hundred twenty billion, one hundred forty million, two hundred forty thousand, two hundred two".