563664440 has 16 divisors (see below), whose sum is σ = 1268245080. Its totient is φ = 225465760.

The previous prime is 563664421. The next prime is 563664509. The reversal of 563664440 is 44466365.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 563664394 and 563664403.

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 in 3 ways as a sum of consecutive naturals, for example, 7045766 + ... + 7045845.

Almost surely, 2^563664440 is an apocalyptic number.

It is an amenable number.

563664440 is an abundant number, since it is smaller than the sum of its proper divisors (704580640).

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

563664440 is a wasteful number, since it uses less digits than its factorization.

563664440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14091622 (or 14091618 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 38.

The square root of 563664440 is about 23741.6183104691. The cubic root of 563664440 is about 826.0510338661.

It can be divided in two parts, 56366 and 4440, that added together give a palindrome (60806).

The spelling of 563664440 in words is "five hundred sixty-three million, six hundred sixty-four thousand, four hundred forty".