420320302 has 8 divisors (see below), whose sum is σ = 632023200. Its totient is φ = 209645904.

The previous prime is 420320267. The next prime is 420320309. The reversal of 420320302 is 203023024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420320309) 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 3 ways as a sum of consecutive naturals, for example, 256102 + ... + 257737.

It is an arithmetic number, because the mean of its divisors is an integer number (79002900).

Almost surely, 2^420320302 is an apocalyptic number.

420320302 is a deficient number, since it is larger than the sum of its proper divisors (211702898).

420320302 is a wasteful number, since it uses less digits than its factorization.

420320302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514250.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 420320302 is about 20501.7146112222. The cubic root of 420320302 is about 749.0775634276.

Adding to 420320302 its reverse (203023024), we get a palindrome (623343326).

The spelling of 420320302 in words is "four hundred twenty million, three hundred twenty thousand, three hundred two".