43749872 has 20 divisors (see below), whose sum is σ = 85239336. Its totient is φ = 21752640.

The previous prime is 43749859. The next prime is 43749883. The reversal of 43749872 is 27894734.

43749872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 4658 + ... + 10449.

Almost surely, 2^43749872 is an apocalyptic number.

It is an amenable number.

43749872 is a deficient number, since it is larger than the sum of its proper divisors (41489464).

43749872 is a wasteful number, since it uses less digits than its factorization.

43749872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15296 (or 15290 counting only the distinct ones).

The product of its digits is 338688, while the sum is 44.

The square root of 43749872 is about 6614.3686017639. The cubic root of 43749872 is about 352.3645929632.

The spelling of 43749872 in words is "forty-three million, seven hundred forty-nine thousand, eight hundred seventy-two".