40816841 has 4 divisors (see below), whose sum is σ = 43956612. Its totient is φ = 37677072.

The previous prime is 40816829. The next prime is 40816859. The reversal of 40816841 is 14861804.

40816841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2016400 + 38800441 = 1420^2 + 6229^2 .

It is a cyclic number.

It is not a de Polignac number, because 40816841 - 2¹⁴ = 40800457 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40816798 and 40816807.

It is not an unprimeable number, because it can be changed into a prime (40816861) 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, 1569866 + ... + 1569891.

It is an arithmetic number, because the mean of its divisors is an integer number (10989153).

Almost surely, 2^40816841 is an apocalyptic number.

It is an amenable number.

40816841 is a deficient number, since it is larger than the sum of its proper divisors (3139771).

40816841 is a wasteful number, since it uses less digits than its factorization.

40816841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3139770.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 40816841 is about 6388.8059134708. The cubic root of 40816841 is about 344.3074843351.

The spelling of 40816841 in words is "forty million, eight hundred sixteen thousand, eight hundred forty-one".