43999912 has 48 divisors (see below), whose sum is σ = 93640320. Its totient is φ = 19202400.

The previous prime is 43999903. The next prime is 43999913. The reversal of 43999912 is 21999934.

43999912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (43999913) 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 11 ways as a sum of consecutive naturals, for example, 346393 + ... + 346519.

It is an arithmetic number, because the mean of its divisors is an integer number (1950840).

Almost surely, 2^43999912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43999912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46820160).

43999912 is an abundant number, since it is smaller than the sum of its proper divisors (49640408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43999912 is a wasteful number, since it uses less digits than its factorization.

43999912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 171 counting only the distinct ones).

The product of its digits is 157464, while the sum is 46.

The square root of 43999912 is about 6633.2429474579. The cubic root of 43999912 is about 353.0345981759.

The spelling of 43999912 in words is "forty-three million, nine hundred ninety-nine thousand, nine hundred twelve".