43994936 has 8 divisors (see below), whose sum is σ = 82490520. Its totient is φ = 21997464.

The previous prime is 43994917. The next prime is 43994939. The reversal of 43994936 is 63949934.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43994939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2749676 + ... + 2749691.

It is an arithmetic number, because the mean of its divisors is an integer number (10311315).

Almost surely, 2^43994936 is an apocalyptic number.

It is an amenable number.

43994936 is a deficient number, since it is larger than the sum of its proper divisors (38495584).

43994936 is a wasteful number, since it uses less digits than its factorization.

43994936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5499373 (or 5499369 counting only the distinct ones).

The product of its digits is 629856, while the sum is 47.

The square root of 43994936 is about 6632.8678563650. The cubic root of 43994936 is about 353.0212893130.

The spelling of 43994936 in words is "forty-three million, nine hundred ninety-four thousand, nine hundred thirty-six".