200720544 has 48 divisors (see below), whose sum is σ = 531582912. Its totient is φ = 66311168.

The previous prime is 200720539. The next prime is 200720549. The reversal of 200720544 is 445027002.

It is an interprime number because it is at equal distance from previous prime (200720539) and next prime (200720549).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (200720549) 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 7 ways as a sum of consecutive naturals, for example, 1597 + ... + 20099.

It is an arithmetic number, because the mean of its divisors is an integer number (11074644).

Almost surely, 2^200720544 is an apocalyptic number.

200720544 is a gapful number since it is divisible by the number (24) 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 200720544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (265791456).

200720544 is an abundant number, since it is smaller than the sum of its proper divisors (330862368).

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

200720544 is a wasteful number, since it uses less digits than its factorization.

200720544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18629 (or 18621 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 200720544 is about 14167.5877975046. The cubic root of 200720544 is about 585.5050004155.

Adding to 200720544 its reverse (445027002), we get a palindrome (645747546).

The spelling of 200720544 in words is "two hundred million, seven hundred twenty thousand, five hundred forty-four".