41939991 has 8 divisors (see below), whose sum is σ = 62133360. Its totient is φ = 27959976.

The previous prime is 41939977. The next prime is 41940023. The reversal of 41939991 is 19993914.

It is not a de Polignac number, because 41939991 - 2⁶ = 41939927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41939941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776640 + ... + 776693.

It is an arithmetic number, because the mean of its divisors is an integer number (7766670).

Almost surely, 2^41939991 is an apocalyptic number.

41939991 is a deficient number, since it is larger than the sum of its proper divisors (20193369).

41939991 is a wasteful number, since it uses less digits than its factorization.

41939991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553342 (or 1553336 counting only the distinct ones).

The product of its digits is 78732, while the sum is 45.

The square root of 41939991 is about 6476.1092486153. The cubic root of 41939991 is about 347.4370356738.

The spelling of 41939991 in words is "forty-one million, nine hundred thirty-nine thousand, nine hundred ninety-one".