422869280656 has 135 divisors (see below), whose sum is σ = 889212129843. Its totient is φ = 194773063680.

The previous prime is 422869280641. The next prime is 422869280683. The reversal of 422869280656 is 656082968224.

The square root of 422869280656 is 650284.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 53399815056 + 369469465600 = 231084^2 + 607840^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422869280656.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3228009711 + ... + 3228009841.

Almost surely, 2^422869280656 is an apocalyptic number.

422869280656 is the 650284-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422869280656

422869280656 is an abundant number, since it is smaller than the sum of its proper divisors (466342849187).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422869280656 is an equidigital number, since it uses as much as digits as its factorization.

422869280656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 422869280656 in words is "four hundred twenty-two billion, eight hundred sixty-nine million, two hundred eighty thousand, six hundred fifty-six".