420646622 has 16 divisors (see below), whose sum is σ = 690690672. Its totient is φ = 190547520.

The previous prime is 420646619. The next prime is 420646627. The reversal of 420646622 is 226646024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420646627) 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, 26183 + ... + 39074.

It is an arithmetic number, because the mean of its divisors is an integer number (43168167).

Almost surely, 2^420646622 is an apocalyptic number.

420646622 is a deficient number, since it is larger than the sum of its proper divisors (270044050).

420646622 is a wasteful number, since it uses less digits than its factorization.

420646622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65563.

The product of its (nonzero) digits is 27648, while the sum is 32.

The square root of 420646622 is about 20509.6714259395. The cubic root of 420646622 is about 749.2713646462.

The spelling of 420646622 in words is "four hundred twenty million, six hundred forty-six thousand, six hundred twenty-two".