43245443 has 4 divisors (see below), whose sum is σ = 43263840. Its totient is φ = 43227048.

The previous prime is 43245437. The next prime is 43245533. The reversal of 43245443 is 34454234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34454234 = 2 ⋅17227117.

It is a cyclic number.

It is not a de Polignac number, because 43245443 - 2⁶ = 43245379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43205443) 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, 5048 + ... + 10581.

It is an arithmetic number, because the mean of its divisors is an integer number (10815960).

Almost surely, 2^43245443 is an apocalyptic number.

43245443 is a deficient number, since it is larger than the sum of its proper divisors (18397).

43245443 is a wasteful number, since it uses less digits than its factorization.

43245443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18396.

The product of its digits is 23040, while the sum is 29.

The square root of 43245443 is about 6576.1267475620. The cubic root of 43245443 is about 351.0051189314.

Adding to 43245443 its reverse (34454234), we get a palindrome (77699677).

The spelling of 43245443 in words is "forty-three million, two hundred forty-five thousand, four hundred forty-three".