43806949944 has 32 divisors (see below), whose sum is σ = 109751915520. Its totient is φ = 14571044576.

The previous prime is 43806949909. The next prime is 43806949961. The reversal of 43806949944 is 44994960834.

It is a super-2 number, since 2×43806949944² (a number of 22 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1943064 + ... + 1965479.

It is an arithmetic number, because the mean of its divisors is an integer number (3429747360).

Almost surely, 2^43806949944 is an apocalyptic number.

It is an amenable number.

43806949944 is an abundant number, since it is smaller than the sum of its proper divisors (65944965576).

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

43806949944 is a wasteful number, since it uses less digits than its factorization.

43806949944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909019 (or 3909015 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 60.

The spelling of 43806949944 in words is "forty-three billion, eight hundred six million, nine hundred forty-nine thousand, nine hundred forty-four".