728335230 has 32 divisors (see below), whose sum is σ = 1997720064. Its totient is φ = 166476576.

The previous prime is 728335219. The next prime is 728335243. The reversal of 728335230 is 32533827.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 728335191 and 728335200.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1733922 + ... + 1734341.

It is an arithmetic number, because the mean of its divisors is an integer number (62428752).

Almost surely, 2^728335230 is an apocalyptic number.

728335230 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

728335230 is an abundant number, since it is smaller than the sum of its proper divisors (1269384834).

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

728335230 is a wasteful number, since it uses less digits than its factorization.

728335230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468280.

The product of its (nonzero) digits is 30240, while the sum is 33.

The square root of 728335230 is about 26987.6866366867. The cubic root of 728335230 is about 899.7263489017.

The spelling of 728335230 in words is "seven hundred twenty-eight million, three hundred thirty-five thousand, two hundred thirty".