43072243 has 8 divisors (see below), whose sum is σ = 43465136. Its totient is φ = 42681600.

The previous prime is 43072229. The next prime is 43072247. The reversal of 43072243 is 34227034.

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

It is a cyclic number.

It is not a de Polignac number, because 43072243 - 2⁹ = 43071731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43072247) 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, 75148 + ... + 75718.

It is an arithmetic number, because the mean of its divisors is an integer number (5433142).

Almost surely, 2^43072243 is an apocalyptic number.

43072243 is a deficient number, since it is larger than the sum of its proper divisors (392893).

43072243 is a wasteful number, since it uses less digits than its factorization.

43072243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 43072243 is about 6562.9446896953. The cubic root of 43072243 is about 350.5358947042.

Adding to 43072243 its reverse (34227034), we get a palindrome (77299277).

The spelling of 43072243 in words is "forty-three million, seventy-two thousand, two hundred forty-three".