40886681 has 4 divisors (see below), whose sum is σ = 44603664. Its totient is φ = 37169700.

The previous prime is 40886641. The next prime is 40886701. The reversal of 40886681 is 18668804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40886681 - 2¹⁰ = 40885657 is a prime.

It is a super-3 number, since 3×40886681³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40886641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1858475 + ... + 1858496.

It is an arithmetic number, because the mean of its divisors is an integer number (11150916).

Almost surely, 2^40886681 is an apocalyptic number.

It is an amenable number.

40886681 is a deficient number, since it is larger than the sum of its proper divisors (3716983).

40886681 is a wasteful number, since it uses less digits than its factorization.

40886681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3716982.

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 40886681 is about 6394.2693875063. The cubic root of 40886681 is about 344.5037491789.

The spelling of 40886681 in words is "forty million, eight hundred eighty-six thousand, six hundred eighty-one".