563821440 has 384 divisors, whose sum is σ = 2256297120. Its totient is φ = 118702080.

The previous prime is 563821421. The next prime is 563821457. The reversal of 563821440 is 44128365.

563821440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (384).

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 47 ways as a sum of consecutive naturals, for example, 1222810 + ... + 1223270.

Almost surely, 2^563821440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563821440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1128148560).

563821440 is an abundant number, since it is smaller than the sum of its proper divisors (1692475680).

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

563821440 is a wasteful number, since it uses less digits than its factorization.

563821440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 491 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 563821440 is about 23744.9245103032. The cubic root of 563821440 is about 826.1277213205.

The spelling of 563821440 in words is "five hundred sixty-three million, eight hundred twenty-one thousand, four hundred forty".