43436945 has 16 divisors (see below), whose sum is σ = 55909440. Its totient is φ = 32295744.

The previous prime is 43436929. The next prime is 43436959. The reversal of 43436945 is 54963434.

It is a happy number.

43436945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43436945 - 2⁴ = 43436929 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 43436899 and 43436908.

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 15 ways as a sum of consecutive naturals, for example, 722 + ... + 9348.

It is an arithmetic number, because the mean of its divisors is an integer number (3494340).

Almost surely, 2^43436945 is an apocalyptic number.

It is an amenable number.

43436945 is a deficient number, since it is larger than the sum of its proper divisors (12472495).

43436945 is a wasteful number, since it uses less digits than its factorization.

43436945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8704.

The product of its digits is 155520, while the sum is 38.

The square root of 43436945 is about 6590.6710583976. The cubic root of 43436945 is about 351.5224698257.

The spelling of 43436945 in words is "forty-three million, four hundred thirty-six thousand, nine hundred forty-five".