420224302 has 4 divisors (see below), whose sum is σ = 630336456. Its totient is φ = 210112150.

The previous prime is 420224263. The next prime is 420224317. The reversal of 420224302 is 203422024.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 420224302.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 105056074 + ... + 105056077.

It is an arithmetic number, because the mean of its divisors is an integer number (157584114).

Almost surely, 2^420224302 is an apocalyptic number.

420224302 is a deficient number, since it is larger than the sum of its proper divisors (210112154).

420224302 is a wasteful number, since it uses less digits than its factorization.

420224302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210112153.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 420224302 is about 20499.3732099301. The cubic root of 420224302 is about 749.0205300008.

Adding to 420224302 its reverse (203422024), we get a palindrome (623646326).

The spelling of 420224302 in words is "four hundred twenty million, two hundred twenty-four thousand, three hundred two".