40881535 has 8 divisors (see below), whose sum is σ = 49098096. Its totient is φ = 32678400.

The previous prime is 40881517. The next prime is 40881571. The reversal of 40881535 is 53518804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40881535 - 2²³ = 32492927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40881535.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5452 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (6137262).

Almost surely, 2^40881535 is an apocalyptic number.

40881535 is a deficient number, since it is larger than the sum of its proper divisors (8216561).

40881535 is a wasteful number, since it uses less digits than its factorization.

40881535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6713.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 40881535 is about 6393.8669832895. The cubic root of 40881535 is about 344.4892954854.

The spelling of 40881535 in words is "forty million, eight hundred eighty-one thousand, five hundred thirty-five".