41578645 has 4 divisors (see below), whose sum is σ = 49894380. Its totient is φ = 33262912.

The previous prime is 41578609. The next prime is 41578661. The reversal of 41578645 is 54687514.

41578645 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 23251684 + 18326961 = 4822^2 + 4281^2 .

It is a cyclic number.

It is not a de Polignac number, because 41578645 - 2⁹ = 41578133 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 41578598 and 41578607.

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 3 ways as a sum of consecutive naturals, for example, 4157860 + ... + 4157869.

It is an arithmetic number, because the mean of its divisors is an integer number (12473595).

Almost surely, 2^41578645 is an apocalyptic number.

It is an amenable number.

41578645 is a deficient number, since it is larger than the sum of its proper divisors (8315735).

41578645 is an equidigital number, since it uses as much as digits as its factorization.

41578645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8315734.

The product of its digits is 134400, while the sum is 40.

The square root of 41578645 is about 6448.1505100300. The cubic root of 41578645 is about 346.4363418083.

The spelling of 41578645 in words is "forty-one million, five hundred seventy-eight thousand, six hundred forty-five".