43435442 has 16 divisors (see below), whose sum is σ = 69127992. Its totient is φ = 20398080.

The previous prime is 43435423. The next prime is 43435487. The reversal of 43435442 is 24453434.

43435442 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 4 ways, for example, as 42915601 + 519841 = 6551^2 + 721^2 .

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 7 ways as a sum of consecutive naturals, for example, 20798 + ... + 22790.

Almost surely, 2^43435442 is an apocalyptic number.

43435442 is a deficient number, since it is larger than the sum of its proper divisors (25692550).

43435442 is a wasteful number, since it uses less digits than its factorization.

43435442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653.

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

The square root of 43435442 is about 6590.5570326035. The cubic root of 43435442 is about 351.5184153327.

Adding to 43435442 its reverse (24453434), we get a palindrome (67888876).

The spelling of 43435442 in words is "forty-three million, four hundred thirty-five thousand, four hundred forty-two".