41040991 has 4 divisors (see below), whose sum is σ = 41464192. Its totient is φ = 40617792.

The previous prime is 41040973. The next prime is 41040997. The reversal of 41040991 is 19904014.

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 41040991 - 2⁹ = 41040479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41040997) 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, 211455 + ... + 211648.

It is an arithmetic number, because the mean of its divisors is an integer number (10366048).

Almost surely, 2^41040991 is an apocalyptic number.

41040991 is a deficient number, since it is larger than the sum of its proper divisors (423201).

41040991 is an equidigital number, since it uses as much as digits as its factorization.

41040991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423200.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 41040991 is about 6406.3242971301. The cubic root of 41040991 is about 344.9366011066.

The spelling of 41040991 in words is "forty-one million, forty thousand, nine hundred ninety-one".