40071087 has 24 divisors (see below), whose sum is σ = 67062944. Its totient is φ = 22581504.

The previous prime is 40071079. The next prime is 40071121. The reversal of 40071087 is 78017004.

It is not a de Polignac number, because 40071087 - 2³ = 40071079 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 40071087.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40071287) 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 23 ways as a sum of consecutive naturals, for example, 243 + ... + 8955.

Almost surely, 2^40071087 is an apocalyptic number.

40071087 is a deficient number, since it is larger than the sum of its proper divisors (26991857).

40071087 is a wasteful number, since it uses less digits than its factorization.

40071087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8799 (or 8796 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 40071087 is about 6330.1727464580. The cubic root of 40071087 is about 342.1976645382.

The spelling of 40071087 in words is "forty million, seventy-one thousand, eighty-seven".