43116728 has 32 divisors (see below), whose sum is σ = 82857600. Its totient is φ = 21027552.

The previous prime is 43116721. The next prime is 43116739. The reversal of 43116728 is 82761134.

It is a junction number, because it is equal to n+sod(n) for n = 43116694 and 43116703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43116721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78551 + ... + 79097.

It is an arithmetic number, because the mean of its divisors is an integer number (2589300).

Almost surely, 2^43116728 is an apocalyptic number.

It is an amenable number.

43116728 is a deficient number, since it is larger than the sum of its proper divisors (39740872).

43116728 is a wasteful number, since it uses less digits than its factorization.

43116728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779 (or 775 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 43116728 is about 6566.3329187607. The cubic root of 43116728 is about 350.6565309727.

The spelling of 43116728 in words is "forty-three million, one hundred sixteen thousand, seven hundred twenty-eight".