720000043 has 8 divisors (see below), whose sum is σ = 823032288. Its totient is φ = 617011584.

The previous prime is 719999999. The next prime is 720000049. The reversal of 720000043 is 340000027.

720000043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-720000043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 719999981 and 720000026.

It is not an unprimeable number, because it can be changed into a prime (720000049) 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, 40305 + ... + 55357.

It is an arithmetic number, because the mean of its divisors is an integer number (102879036).

Almost surely, 2^720000043 is an apocalyptic number.

720000043 is a deficient number, since it is larger than the sum of its proper divisors (103032245).

720000043 is a wasteful number, since it uses less digits than its factorization.

720000043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21893.

The product of its (nonzero) digits is 168, while the sum is 16.

The square root of 720000043 is about 26832.8165312552. The cubic root of 720000043 is about 896.2809671541.

Subtracting from 720000043 its sum of digits (16), we obtain a palindrome (720000027).

The spelling of 720000043 in words is "seven hundred twenty million, forty-three", and thus it is an aban number.