40881499 has 4 divisors (see below), whose sum is σ = 40900336. Its totient is φ = 40862664.

The previous prime is 40881487. The next prime is 40881517. The reversal of 40881499 is 99418804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40881499 - 2¹³ = 40873307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40881439) 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 3 ways as a sum of consecutive naturals, for example, 5664 + ... + 10669.

It is an arithmetic number, because the mean of its divisors is an integer number (10225084).

Almost surely, 2^40881499 is an apocalyptic number.

40881499 is a deficient number, since it is larger than the sum of its proper divisors (18837).

40881499 is a wasteful number, since it uses less digits than its factorization.

40881499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18836.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 40881499 is about 6393.8641680912. The cubic root of 40881499 is about 344.4891943670.

The spelling of 40881499 in words is "forty million, eight hundred eighty-one thousand, four hundred ninety-nine".