41091399 has 18 divisors (see below), whose sum is σ = 61343568. Its totient is φ = 26505000.

The previous prime is 41091371. The next prime is 41091403. The reversal of 41091399 is 99319014.

It is not a de Polignac number, because 41091399 - 2⁵ = 41091367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41092399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6274 + ... + 11024.

It is an arithmetic number, because the mean of its divisors is an integer number (3407976).

Almost surely, 2^41091399 is an apocalyptic number.

41091399 is a deficient number, since it is larger than the sum of its proper divisors (20252169).

41091399 is a wasteful number, since it uses less digits than its factorization.

41091399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4819 (or 4785 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 41091399 is about 6410.2573271281. The cubic root of 41091399 is about 345.0777644488.

It can be divided in two parts, 410 and 91399, that added together give a square (91809 = 303²).

The spelling of 41091399 in words is "forty-one million, ninety-one thousand, three hundred ninety-nine".