730512784 has 45 divisors (see below), whose sum is σ = 1472175523. Its totient is φ = 351147776.

The previous prime is 730512773. The next prime is 730512787. The reversal of 730512784 is 487215037.

730512784 = 1³ + 2³ + ... + 232³.

The square root of 730512784 is 27028.

It is a perfect power (a square), and thus also a powerful number.

730512784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 61152400 + 669360384 = 7820^2 + 25872^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (730512787) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3135132 + ... + 3135364.

Almost surely, 2^730512784 is an apocalyptic number.

730512784 is the 27028-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 730512784

730512784 is an abundant number, since it is smaller than the sum of its proper divisors (741662739).

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

730512784 is an equidigital number, since it uses as much as digits as its factorization.

730512784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The cubic root of 730512784 is about 900.6221147272.

The spelling of 730512784 in words is "seven hundred thirty million, five hundred twelve thousand, seven hundred eighty-four".