43531634 has 8 divisors (see below), whose sum is σ = 65424348. Its totient is φ = 21723520.

The previous prime is 43531633. The next prime is 43531637. The reversal of 43531634 is 43613534.

43531634 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 42315025 + 1216609 = 6505^2 + 1103^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 43531597 and 43531606.

It is not an unprimeable number, because it can be changed into a prime (43531633) by changing a digit.

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, 19847 + ... + 21930.

Almost surely, 2^43531634 is an apocalyptic number.

43531634 is a deficient number, since it is larger than the sum of its proper divisors (21892714).

43531634 is a wasteful number, since it uses less digits than its factorization.

43531634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42300.

The product of its digits is 12960, while the sum is 29.

The square root of 43531634 is about 6597.8507106481. The cubic root of 43531634 is about 351.7777145563. Note that the first 4 decimals are identical.

The spelling of 43531634 in words is "forty-three million, five hundred thirty-one thousand, six hundred thirty-four".