40443856 has 20 divisors (see below), whose sum is σ = 82484800. Its totient is φ = 19157472.

The previous prime is 40443853. The next prime is 40443883. The reversal of 40443856 is 65834404.

40443856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40443853) 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, 66216 + ... + 66823.

It is an arithmetic number, because the mean of its divisors is an integer number (4124240).

Almost surely, 2^40443856 is an apocalyptic number.

It is an amenable number.

40443856 is an abundant number, since it is smaller than the sum of its proper divisors (42040944).

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

40443856 is a wasteful number, since it uses less digits than its factorization.

40443856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133066 (or 133060 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

The square root of 40443856 is about 6359.5484116406. The cubic root of 40443856 is about 343.2555108960.

The spelling of 40443856 in words is "forty million, four hundred forty-three thousand, eight hundred fifty-six".