728541078 has 32 divisors (see below), whose sum is σ = 1502876160. Its totient is φ = 235317600.

The previous prime is 728541053. The next prime is 728541089. The reversal of 728541078 is 870145827.

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, 15693 + ... + 41271.

It is an arithmetic number, because the mean of its divisors is an integer number (46964880).

Almost surely, 2^728541078 is an apocalyptic number.

728541078 is an abundant number, since it is smaller than the sum of its proper divisors (774335082).

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

728541078 is a wasteful number, since it uses less digits than its factorization.

728541078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25732.

The product of its (nonzero) digits is 125440, while the sum is 42.

The square root of 728541078 is about 26991.5001065150. The cubic root of 728541078 is about 899.8111035661.

The spelling of 728541078 in words is "seven hundred twenty-eight million, five hundred forty-one thousand, seventy-eight".