728595330 has 32 divisors (see below), whose sum is σ = 1759368384. Its totient is φ = 193098816.

The previous prime is 728595313. The next prime is 728595347. The reversal of 728595330 is 33595827.

It is an interprime number because it is at equal distance from previous prime (728595313) and next prime (728595347).

It is a Curzon 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, 69609 + ... + 79388.

It is an arithmetic number, because the mean of its divisors is an integer number (54980262).

Almost surely, 2^728595330 is an apocalyptic number.

728595330 is an abundant number, since it is smaller than the sum of its proper divisors (1030773054).

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

728595330 is a wasteful number, since it uses less digits than its factorization.

728595330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149170.

The product of its (nonzero) digits is 226800, while the sum is 42.

The square root of 728595330 is about 26992.5050708525. The cubic root of 728595330 is about 899.8334383124.

The spelling of 728595330 in words is "seven hundred twenty-eight million, five hundred ninety-five thousand, three hundred thirty".