43944364 has 12 divisors (see below), whose sum is σ = 77072688. Its totient is φ = 21923600.

The previous prime is 43944361. The next prime is 43944377. The reversal of 43944364 is 46344934.

43944364 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43944364² = 3862214254728992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43944361) 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 3 ways as a sum of consecutive naturals, for example, 10072 + ... + 13759.

It is an arithmetic number, because the mean of its divisors is an integer number (6422724).

Almost surely, 2^43944364 is an apocalyptic number.

It is an amenable number.

43944364 is a deficient number, since it is larger than the sum of its proper divisors (33128324).

43944364 is a wasteful number, since it uses less digits than its factorization.

43944364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24296 (or 24294 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 43944364 is about 6629.0545328878. The cubic root of 43944364 is about 352.8859719387.

The spelling of 43944364 in words is "forty-three million, nine hundred forty-four thousand, three hundred sixty-four".