40065071 has 8 divisors (see below), whose sum is σ = 41072640. Its totient is φ = 39068568.

The previous prime is 40065059. The next prime is 40065079. The reversal of 40065071 is 17056004.

40065071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40065071 - 2⁶ = 40065007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40065079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4820 + ... + 10166.

It is an arithmetic number, because the mean of its divisors is an integer number (5134080).

Almost surely, 2^40065071 is an apocalyptic number.

40065071 is a deficient number, since it is larger than the sum of its proper divisors (1007569).

40065071 is a wasteful number, since it uses less digits than its factorization.

40065071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5533.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 40065071 is about 6329.6975441169. The cubic root of 40065071 is about 342.1805386058.

The spelling of 40065071 in words is "forty million, sixty-five thousand, seventy-one".