41981013 has 24 divisors (see below), whose sum is σ = 64097280. Its totient is φ = 26403840.

The previous prime is 41980979. The next prime is 41981021. The reversal of 41981013 is 31018914.

It is not a de Polignac number, because 41981013 - 2⁹ = 41980501 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41981053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65173 + ... + 65813.

It is an arithmetic number, because the mean of its divisors is an integer number (2670720).

Almost surely, 2^41981013 is an apocalyptic number.

It is an amenable number.

41981013 is a deficient number, since it is larger than the sum of its proper divisors (22116267).

41981013 is a wasteful number, since it uses less digits than its factorization.

41981013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1049 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 41981013 is about 6479.2756539601. The cubic root of 41981013 is about 347.5502761824.

Adding to 41981013 its reverse (31018914), we get a palindrome (72999927).

The spelling of 41981013 in words is "forty-one million, nine hundred eighty-one thousand, thirteen".