563847840 has 288 divisors, whose sum is σ = 2105865216. Its totient is φ = 136765440.

The previous prime is 563847833. The next prime is 563847883. The reversal of 563847840 is 48748365.

563847840 is a `hidden beast` number, since 5 + 638 + 4 + 7 + 8 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 758509 + ... + 759251.

It is an arithmetic number, because the mean of its divisors is an integer number (7312032).

Almost surely, 2^563847840 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 563847840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052932608).

563847840 is an abundant number, since it is smaller than the sum of its proper divisors (1542017376).

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

563847840 is a wasteful number, since it uses less digits than its factorization.

563847840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 563847840 is about 23745.4804120700. The cubic root of 563847840 is about 826.1406151375.

The spelling of 563847840 in words is "five hundred sixty-three million, eight hundred forty-seven thousand, eight hundred forty".