426944656 has 20 divisors (see below), whose sum is σ = 830157804. Its totient is φ = 212710400.

The previous prime is 426944633. The next prime is 426944669. The reversal of 426944656 is 656449624.

It can be written as a sum of positive squares in 2 ways, for example, as 347449600 + 79495056 = 18640^2 + 8916^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42985 + ... + 51976.

Almost surely, 2^426944656 is an apocalyptic number.

It is an amenable number.

426944656 is a deficient number, since it is larger than the sum of its proper divisors (403213148).

426944656 is a wasteful number, since it uses less digits than its factorization.

426944656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95250 (or 95244 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 46.

The square root of 426944656 is about 20662.6391344378. The cubic root of 426944656 is about 752.9922863456.

The spelling of 426944656 in words is "four hundred twenty-six million, nine hundred forty-four thousand, six hundred fifty-six".