443949421988 has 12 divisors (see below), whose sum is σ = 817801566960. Its totient is φ = 210291831432.

The previous prime is 443949421973. The next prime is 443949421991. The reversal of 443949421988 is 889124949344.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2920719806 + ... + 2920719957.

It is an arithmetic number, because the mean of its divisors is an integer number (68150130580).

Almost surely, 2^443949421988 is an apocalyptic number.

It is an amenable number.

443949421988 is a deficient number, since it is larger than the sum of its proper divisors (373852144972).

443949421988 is a wasteful number, since it uses less digits than its factorization.

443949421988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5841439786 (or 5841439784 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 65.

The spelling of 443949421988 in words is "four hundred forty-three billion, nine hundred forty-nine million, four hundred twenty-one thousand, nine hundred eighty-eight".