563721400 has 192 divisors, whose sum is σ = 1502582400. Its totient is φ = 194880000.

The previous prime is 563721397. The next prime is 563721437. The reversal of 563721400 is 4127365.

It is a congruent number.

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, 5581350 + ... + 5581450.

It is an arithmetic number, because the mean of its divisors is an integer number (7825950).

Almost surely, 2^563721400 is an apocalyptic number.

563721400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563721400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (751291200).

563721400 is an abundant number, since it is smaller than the sum of its proper divisors (938861000).

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

563721400 is a wasteful number, since it uses less digits than its factorization.

563721400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 563721400 is about 23742.8178614081. The cubic root of 563721400 is about 826.0788579157.

Adding to 563721400 its reverse (4127365), we get a palindrome (567848765).

The spelling of 563721400 in words is "five hundred sixty-three million, seven hundred twenty-one thousand, four hundred".