43994912 has 48 divisors (see below), whose sum is σ = 98780472. Its totient is φ = 19107840.

The previous prime is 43994911. The next prime is 43994917. The reversal of 43994912 is 21949934.

43994912 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 4 ways, for example, as 24245776 + 19749136 = 4924^2 + 4444^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43994912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43994911) 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 7 ways as a sum of consecutive naturals, for example, 3962 + ... + 10182.

Almost surely, 2^43994912 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 43994912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49390236).

43994912 is an abundant number, since it is smaller than the sum of its proper divisors (54785560).

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

43994912 is a wasteful number, since it uses less digits than its factorization.

43994912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6261 (or 6253 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 43994912 is about 6632.8660471926. The cubic root of 43994912 is about 353.0212251199.

The spelling of 43994912 in words is "forty-three million, nine hundred ninety-four thousand, nine hundred twelve".