43072768 has 18 divisors (see below), whose sum is σ = 85977794. Its totient is φ = 21536256.

The previous prime is 43072739. The next prime is 43072769. The reversal of 43072768 is 86727034.

It can be written as a sum of positive squares in only one way, i.e., 32626944 + 10445824 = 5712^2 + 3232^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43072769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83871 + ... + 84382.

Almost surely, 2^43072768 is an apocalyptic number.

It is an amenable number.

43072768 is a deficient number, since it is larger than the sum of its proper divisors (42905026).

43072768 is an equidigital number, since it uses as much as digits as its factorization.

43072768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168269 (or 168255 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 43072768 is about 6562.9846868631. The cubic root of 43072768 is about 350.5373189053.

The spelling of 43072768 in words is "forty-three million, seventy-two thousand, seven hundred sixty-eight".