43724985 has 16 divisors (see below), whose sum is σ = 73642560. Its totient is φ = 22092480.

The previous prime is 43724929. The next prime is 43724987. The reversal of 43724985 is 58942734.

43724985 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 43724985 - 2⁶ = 43724921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43724987) 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 15 ways as a sum of consecutive naturals, for example, 76426 + ... + 76995.

It is an arithmetic number, because the mean of its divisors is an integer number (4602660).

Almost surely, 2^43724985 is an apocalyptic number.

It is an amenable number.

43724985 is a deficient number, since it is larger than the sum of its proper divisors (29917575).

43724985 is a wasteful number, since it uses less digits than its factorization.

43724985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153448.

The product of its digits is 241920, while the sum is 42.

The square root of 43724985 is about 6612.4870510270. The cubic root of 43724985 is about 352.2977663986.

The spelling of 43724985 in words is "forty-three million, seven hundred twenty-four thousand, nine hundred eighty-five".