41988609 has 12 divisors (see below), whose sum is σ = 65315796. Its totient is φ = 25839072.

The previous prime is 41988577. The next prime is 41988631. The reversal of 41988609 is 90688914.

It can be written as a sum of positive squares in 2 ways, for example, as 18948609 + 23040000 = 4353^2 + 4800^2 .

It is not a de Polignac number, because 41988609 - 2⁵ = 41988577 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (41988649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179322 + ... + 179555.

It is an arithmetic number, because the mean of its divisors is an integer number (5442983).

Almost surely, 2^41988609 is an apocalyptic number.

It is an amenable number.

41988609 is a deficient number, since it is larger than the sum of its proper divisors (23327187).

41988609 is a wasteful number, since it uses less digits than its factorization.

41988609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358896 (or 358893 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 41988609 is about 6479.8618040819. The cubic root of 41988609 is about 347.5712367111.

The spelling of 41988609 in words is "forty-one million, nine hundred eighty-eight thousand, six hundred nine".