43425443 has 4 divisors (see below), whose sum is σ = 43486560. Its totient is φ = 43364328.

The previous prime is 43425433. The next prime is 43425461. The reversal of 43425443 is 34452434.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 43425443 - 2¹⁶ = 43359907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43425433) 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, 29480 + ... + 30917.

It is an arithmetic number, because the mean of its divisors is an integer number (10871640).

Almost surely, 2^43425443 is an apocalyptic number.

43425443 is a deficient number, since it is larger than the sum of its proper divisors (61117).

43425443 is an equidigital number, since it uses as much as digits as its factorization.

43425443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61116.

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

The square root of 43425443 is about 6589.7984035932. The cubic root of 43425443 is about 351.4914396479.

Adding to 43425443 its reverse (34452434), we get a palindrome (77877877).

The spelling of 43425443 in words is "forty-three million, four hundred twenty-five thousand, four hundred forty-three".