728031200 has 72 divisors (see below), whose sum is σ = 1914049368. Its totient is φ = 268807680.

The previous prime is 728031193. The next prime is 728031209. The reversal of 728031200 is 2130827.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728031209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24602 + ... + 45401.

It is an arithmetic number, because the mean of its divisors is an integer number (26584019).

Almost surely, 2^728031200 is an apocalyptic number.

It is an amenable number.

728031200 is an abundant number, since it is smaller than the sum of its proper divisors (1186018168).

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

728031200 is a wasteful number, since it uses less digits than its factorization.

728031200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70036 (or 70023 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 728031200 is about 26982.0532947365. The cubic root of 728031200 is about 899.6011401328.

The spelling of 728031200 in words is "seven hundred twenty-eight million, thirty-one thousand, two hundred".