41949809 has 4 divisors (see below), whose sum is σ = 45763440. Its totient is φ = 38136180.

The previous prime is 41949773. The next prime is 41949821. The reversal of 41949809 is 90894914.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41949809 - 2¹⁶ = 41884273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 41949809.

It is not an unprimeable number, because it can be changed into a prime (41949889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1906799 + ... + 1906820.

It is an arithmetic number, because the mean of its divisors is an integer number (11440860).

Almost surely, 2^41949809 is an apocalyptic number.

It is an amenable number.

41949809 is a deficient number, since it is larger than the sum of its proper divisors (3813631).

41949809 is a wasteful number, since it uses less digits than its factorization.

41949809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813630.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 41949809 is about 6476.8672211186. The cubic root of 41949809 is about 347.4641448091.

The spelling of 41949809 in words is "forty-one million, nine hundred forty-nine thousand, eight hundred nine".