43855049 has 12 divisors (see below), whose sum is σ = 52662528. Its totient is φ = 36376200.

The previous prime is 43855037. The next prime is 43855057. The reversal of 43855049 is 94055834.

It is a happy number.

43855049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43855049 - 2²⁴ = 27077833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43855069) 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 11 ways as a sum of consecutive naturals, for example, 12917 + ... + 15954.

It is an arithmetic number, because the mean of its divisors is an integer number (4388544).

Almost surely, 2^43855049 is an apocalyptic number.

43855049 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

43855049 is a deficient number, since it is larger than the sum of its proper divisors (8807479).

43855049 is a wasteful number, since it uses less digits than its factorization.

43855049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28916 (or 28909 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

The square root of 43855049 is about 6622.3144745625. The cubic root of 43855049 is about 352.6467346786.

The spelling of 43855049 in words is "forty-three million, eight hundred fifty-five thousand, forty-nine".