40368881 has 16 divisors (see below), whose sum is σ = 47309184. Its totient is φ = 33730944.

The previous prime is 40368871. The next prime is 40368883. The reversal of 40368881 is 18886304.

It is not a de Polignac number, because 40368881 - 2¹⁰ = 40367857 is a prime.

It is a super-3 number, since 3×40368881³ (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 (40368883) 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 15 ways as a sum of consecutive naturals, for example, 86210 + ... + 86676.

It is an arithmetic number, because the mean of its divisors is an integer number (2956824).

Almost surely, 2^40368881 is an apocalyptic number.

It is an amenable number.

40368881 is a deficient number, since it is larger than the sum of its proper divisors (6940303).

40368881 is a wasteful number, since it uses less digits than its factorization.

40368881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760.

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 40368881 is about 6353.6509976548. The cubic root of 40368881 is about 343.0432701604.

The spelling of 40368881 in words is "forty million, three hundred sixty-eight thousand, eight hundred eighty-one".