420330626 has 16 divisors (see below), whose sum is σ = 644121720. Its totient is φ = 205658880.

The previous prime is 420330607. The next prime is 420330641. The reversal of 420330626 is 626033024.

It can be written as a sum of positive squares in 4 ways, for example, as 225030001 + 195300625 = 15001^2 + 13975^2 .

It is a junction number, because it is equal to n+sod(n) for n = 420330595 and 420330604.

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 in 7 ways as a sum of consecutive naturals, for example, 15290 + ... + 32778.

Almost surely, 2^420330626 is an apocalyptic number.

420330626 is a deficient number, since it is larger than the sum of its proper divisors (223791094).

420330626 is a wasteful number, since it uses less digits than its factorization.

420330626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17749.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 420330626 is about 20501.9663934950. The cubic root of 420330626 is about 749.0836963802.

The spelling of 420330626 in words is "four hundred twenty million, three hundred thirty thousand, six hundred twenty-six".