43685416 has 16 divisors (see below), whose sum is σ = 81986400. Its totient is φ = 21822384.

The previous prime is 43685413. The next prime is 43685423. The reversal of 43685416 is 61458634.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (43685413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10575 + ... + 14113.

It is an arithmetic number, because the mean of its divisors is an integer number (5124150).

Almost surely, 2^43685416 is an apocalyptic number.

It is an amenable number.

43685416 is a deficient number, since it is larger than the sum of its proper divisors (38300984).

43685416 is a wasteful number, since it uses less digits than its factorization.

43685416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5088 (or 5084 counting only the distinct ones).

The product of its digits is 69120, while the sum is 37.

The square root of 43685416 is about 6609.4943830826. The cubic root of 43685416 is about 352.1914635036.

The spelling of 43685416 in words is "forty-three million, six hundred eighty-five thousand, four hundred sixteen".