563446620 has 144 divisors (see below), whose sum is σ = 1871880192. Its totient is φ = 136053120.

The previous prime is 563446603. The next prime is 563446627. The reversal of 563446620 is 26644365.

563446620 = 473² + 474² + ... + 1215².

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563446627) by changing a digit.

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, 757969 + ... + 758711.

It is an arithmetic number, because the mean of its divisors is an integer number (12999168).

Almost surely, 2^563446620 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 563446620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935940096).

563446620 is an abundant number, since it is smaller than the sum of its proper divisors (1308433572).

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

563446620 is a wasteful number, since it uses less digits than its factorization.

563446620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1147 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

The square root of 563446620 is about 23737.0305640786. The cubic root of 563446620 is about 825.9446149842.

The spelling of 563446620 in words is "five hundred sixty-three million, four hundred forty-six thousand, six hundred twenty".