728016140 has 12 divisors (see below), whose sum is σ = 1528833936. Its totient is φ = 291206448.

The previous prime is 728016119. The next prime is 728016239. The reversal of 728016140 is 41610827.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18200384 + ... + 18200423.

It is an arithmetic number, because the mean of its divisors is an integer number (127402828).

Almost surely, 2^728016140 is an apocalyptic number.

It is an amenable number.

728016140 is an abundant number, since it is smaller than the sum of its proper divisors (800817796).

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

728016140 is a wasteful number, since it uses less digits than its factorization.

728016140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36400816 (or 36400814 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 728016140 is about 26981.7742189056. The cubic root of 728016140 is about 899.5949370623.

Adding to 728016140 its reverse (41610827), we get a palindrome (769626967).

The spelling of 728016140 in words is "seven hundred twenty-eight million, sixteen thousand, one hundred forty".