41491399 has 4 divisors (see below), whose sum is σ = 41559264. Its totient is φ = 41423536.

The previous prime is 41491391. The next prime is 41491403. The reversal of 41491399 is 99319414.

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

It is a cyclic number.

It is not a de Polignac number, because 41491399 - 2³ = 41491391 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 Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41491391) 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, 33007 + ... + 34240.

It is an arithmetic number, because the mean of its divisors is an integer number (10389816).

Almost surely, 2^41491399 is an apocalyptic number.

41491399 is a deficient number, since it is larger than the sum of its proper divisors (67865).

41491399 is an equidigital number, since it uses as much as digits as its factorization.

41491399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67864.

The product of its digits is 34992, while the sum is 40.

The square root of 41491399 is about 6441.3817617030. The cubic root of 41491399 is about 346.1938587530.

The spelling of 41491399 in words is "forty-one million, four hundred ninety-one thousand, three hundred ninety-nine".