43545434 has 8 divisors (see below), whose sum is σ = 65991828. Its totient is φ = 21548160.

The previous prime is 43545407. The next prime is 43545457. The reversal of 43545434 is 43454534.

43545434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 41152225 + 2393209 = 6415^2 + 1547^2 .

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43545434.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112037 + ... + 112424.

Almost surely, 2^43545434 is an apocalyptic number.

43545434 is a deficient number, since it is larger than the sum of its proper divisors (22446394).

43545434 is a wasteful number, since it uses less digits than its factorization.

43545434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224560.

The product of its digits is 57600, while the sum is 32.

The square root of 43545434 is about 6598.8964228877. The cubic root of 43545434 is about 351.8148830790.

Adding to 43545434 its reverse (43454534), we get a palindrome (86999968).

The spelling of 43545434 in words is "forty-three million, five hundred forty-five thousand, four hundred thirty-four".