512200720 has 40 divisors (see below), whose sum is σ = 1191809880. Its totient is φ = 204718080.

The previous prime is 512200691. The next prime is 512200721. The reversal of 512200720 is 27002215.

It can be written as a sum of positive squares in 4 ways, for example, as 61402896 + 450797824 = 7836^2 + 21232^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (512200721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189136 + ... + 191824.

It is an arithmetic number, because the mean of its divisors is an integer number (29795247).

Almost surely, 2^512200720 is an apocalyptic number.

It is an amenable number.

512200720 is an abundant number, since it is smaller than the sum of its proper divisors (679609160).

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

512200720 is a wasteful number, since it uses less digits than its factorization.

512200720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5083 (or 5077 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 512200720 is about 22631.8518906430. The cubic root of 512200720 is about 800.1045280084.

Adding to 512200720 its reverse (27002215), we get a palindrome (539202935).

The spelling of 512200720 in words is "five hundred twelve million, two hundred thousand, seven hundred twenty".