41809839 has 8 divisors (see below), whose sum is σ = 56418432. Its totient is φ = 27537240.

The previous prime is 41809799. The next prime is 41809849. The reversal of 41809839 is 93890814.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 41809839 - 2¹¹ = 41807791 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 41809839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41809849) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83707 + ... + 84204.

It is an arithmetic number, because the mean of its divisors is an integer number (7052304).

Almost surely, 2^41809839 is an apocalyptic number.

41809839 is a deficient number, since it is larger than the sum of its proper divisors (14608593).

41809839 is a wasteful number, since it uses less digits than its factorization.

41809839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167997.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 41809839 is about 6466.0528145075. The cubic root of 41809839 is about 347.0772638399.

The spelling of 41809839 in words is "forty-one million, eight hundred nine thousand, eight hundred thirty-nine".