41823981 has 12 divisors (see below), whose sum is σ = 60776352. Its totient is φ = 27714696.

The previous prime is 41823967. The next prime is 41824001. The reversal of 41823981 is 18932814.

41823981 is a `hidden beast` number, since 418 + 239 + 8 + 1 = 666.

It is not a de Polignac number, because 41823981 - 2⁶ = 41823917 is a prime.

It is a super-2 number, since 2×41823981² = 3498490773376722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41823911) 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 11 ways as a sum of consecutive naturals, for example, 12411 + ... + 15416.

It is an arithmetic number, because the mean of its divisors is an integer number (5064696).

Almost surely, 2^41823981 is an apocalyptic number.

It is an amenable number.

41823981 is a deficient number, since it is larger than the sum of its proper divisors (18952371).

41823981 is a wasteful number, since it uses less digits than its factorization.

41823981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28000 (or 27997 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 41823981 is about 6467.1462794652. The cubic root of 41823981 is about 347.1163918974.

The spelling of 41823981 in words is "forty-one million, eight hundred twenty-three thousand, nine hundred eighty-one".