420340202 has 16 divisors (see below), whose sum is σ = 649285632. Its totient is φ = 203942160.

The previous prime is 420340201. The next prime is 420340243. The reversal of 420340202 is 202043024.

It is not an unprimeable number, because it can be changed into a prime (420340201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20927 + ... + 35757.

It is an arithmetic number, because the mean of its divisors is an integer number (40580352).

Almost surely, 2^420340202 is an apocalyptic number.

420340202 is a deficient number, since it is larger than the sum of its proper divisors (228945430).

420340202 is a wasteful number, since it uses less digits than its factorization.

420340202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15253.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 420340202 is about 20502.1999307391. The cubic root of 420340202 is about 749.0893848950.

Adding to 420340202 its reverse (202043024), we get a palindrome (622383226).

The spelling of 420340202 in words is "four hundred twenty million, three hundred forty thousand, two hundred two".