43730043 has 16 divisors (see below), whose sum is σ = 66729216. Its totient is φ = 24953760.

The previous prime is 43730017. The next prime is 43730087. The reversal of 43730043 is 34003734.

It is not a de Polignac number, because 43730043 - 2¹⁰ = 43729019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43729995 and 43730022.

It is not an unprimeable number, because it can be changed into a prime (43730003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26305 + ... + 27917.

It is an arithmetic number, because the mean of its divisors is an integer number (4170576).

Almost surely, 2^43730043 is an apocalyptic number.

43730043 is a deficient number, since it is larger than the sum of its proper divisors (22999173).

43730043 is a wasteful number, since it uses less digits than its factorization.

43730043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2914.

The product of its (nonzero) digits is 3024, while the sum is 24.

The square root of 43730043 is about 6612.8694981831. The cubic root of 43730043 is about 352.3113501913.

Adding to 43730043 its reverse (34003734), we get a palindrome (77733777).

The spelling of 43730043 in words is "forty-three million, seven hundred thirty thousand, forty-three".