43270043 has 4 divisors (see below), whose sum is σ = 43610880. Its totient is φ = 42929208.

The previous prime is 43270037. The next prime is 43270063. The reversal of 43270043 is 34007234.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34007234 = 2 ⋅17003617.

It is a cyclic number.

It is not a de Polignac number, because 43270043 - 2⁶ = 43269979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43270013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170228 + ... + 170481.

It is an arithmetic number, because the mean of its divisors is an integer number (10902720).

Almost surely, 2^43270043 is an apocalyptic number.

43270043 is a deficient number, since it is larger than the sum of its proper divisors (340837).

43270043 is a wasteful number, since it uses less digits than its factorization.

43270043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340836.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 43270043 is about 6577.9968835505. The cubic root of 43270043 is about 351.0716622754.

Adding to 43270043 its reverse (34007234), we get a palindrome (77277277).

The spelling of 43270043 in words is "forty-three million, two hundred seventy thousand, forty-three".