41981646 has 16 divisors (see below), whose sum is σ = 95958144. Its totient is φ = 11994744.

The previous prime is 41981623. The next prime is 41981689. The reversal of 41981646 is 64618914.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 499740 + ... + 499823.

It is an arithmetic number, because the mean of its divisors is an integer number (5997384).

Almost surely, 2^41981646 is an apocalyptic number.

41981646 is an abundant number, since it is smaller than the sum of its proper divisors (53976498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

41981646 is a wasteful number, since it uses less digits than its factorization.

41981646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999575.

The product of its digits is 41472, while the sum is 39.

The square root of 41981646 is about 6479.3245018289. The cubic root of 41981646 is about 347.5520229897.

The spelling of 41981646 in words is "forty-one million, nine hundred eighty-one thousand, six hundred forty-six".